EMERSON PACSystems VersaMax MICRO PLC & NANO PLC. USER MANUAL (2019)

User Manual

Chapter 5

GFK-1645M

Dec 2019

Micro PLCs with 23 Discrete Points and 3 Analog Channels

Item

Description

Input Voltage Range

0 to 30 volts DC

Input Current

7.5mA typical

Input Resistance

2.8 kΩ

Input Threshold Voltage

ON: 15Vdc minimum, OFF: 5Vdc maximum

Input Threshold Current

ON: 4.5mA maximum, OFF: 1.5mA minimum

Response Time

0.5 to 20ms (user configurable) as regular input;
100µs as HSC input

Isolation Voltage

1500V RMS field side to logic side, 500V RMS between
groups

DC Output Specifications

Output logic

Positive Logic

Operating Voltage

24Vdc / 12Vdc / 5Vdc

Voltage Range

24Vdc, +20%, -80%

Maximum UL Pilot Duty Rating

0.75A at 24Vdc

Maximum Resistive Load Rating

0.75A at 24Vdc
0.5A at 12Vdc
0.25A at 5Vdc

Output Voltage Drop

0.3Vdc maximum

Response Time

ON: 0.1ms maximum (24Vdc, 0.2A), OFF: 0.1ms maximum
(24Vdc, 0.2A)

OFF state leakage

0.1mA maximum

Isolation

1500Vac between field side and logic side, 500Vac between
groups

Fuse

Output should be fused externally. Otherwise, a load short
can damage the module output transistor, which is not user
replaceable.

Relay Output Specifications

Operating Voltage

5 to 30Vdc or 5 to 250Vac

Isolation

1500 V RMS between field side and logic side, 500 V RMS
between groups

Leakage Current

15 mA at 240Vac maximum

Maximum UL Pilot Duty Rating

2 amps at 24Vdc and 240Vac

Maximum Resistive Load Rating

2 amps at 24Vdc and 240Vac

Minimum Load

10 mA

Maximum Inrush

5 amps per half cycle

Response Time

ON: 15 ms maximum, OFF: 15 ms maximum

Contact Life: Mechanical

20 x 106 mechanical operations

Contact Life: Electrical Voltage
240Vac, 120Vac, 24Vdc

Current: Resistive
2A

Current: Lamp and
Solenoid
0.6A

Typical
Operations
200,000

User Manual

Chapter 5

GFK-1645M

Dec 2019

Micro PLCs with 23 Discrete Points and 3 Analog Channels

Item

Description

High-Speed Counter Specifications

Maximum Counter Frequency

10kHz

Input Voltage

ON: 15V, OFF: Off:

Count Pulse Width

20% to 80% duty cycle at 10kHz

Count Registers

16 bits

Available Pulse Outputs

None

Outputs

Load Voltage

Q1: 5/12/24V

Maximum Pulse/PWM Frequency

(Q1 only) 5kHz

Types available

Up to four HSC outputs or one Pulse/PWM output plus three
HSC outputs.

5.6.5

Wiring Diagram, IC200UAL006

Figure 32

User Manual

Chapter 5

GFK-1645M

Dec 2019

Micro PLCs with 23 Discrete Points and 3 Analog Channels

5.7

Analog Operation

This section explains how a VersaMax Micro PLC with analog channels processes analog
data.

5.7.1

Analog I/O Parameters

Each analog channel can be configured to operate in either voltage or current mode. If
current mode operation is selected, the range can then be configured as either 4-20mA or
0-20mA.

Parameter

Choices

Default Value

Voltage or current mode

Voltage, Current

Voltage

Current range selection

–

20mA, 0

–

20mA

–

20mA

5.7.2

Input/Output Values Compared to Process Data

The Micro PLC processes analog channels using gain and offset values for both current and
voltage mode operation. Default gain and offset values are loaded into the Micro PLC flash
memory at the factory. For these 23-point Micro PLCs (only) gain and offset can be
recalibrated if necessary, as explained later in this section.

The table below shows the relationship between the analog input and output values used
by the application program, and the actual analog input or output for each mode. These
values include the automatic adjustments for offset and gain.

In this
Configured
Mode:

This is the Analog
Signal Range

This is the Equivalent
Process Data %AI or
%AQ Range

For the Default
Calibration, the Value in
the
%AI or %AQ Reference
Equals:

Voltage 0 to +10V 0 to 10,000mV

0 to 32000

3.2 x mV

Current 0 to 20mA 0 to 20,000µA

0 to 32000

1.6 x µA

Current 4 to 20mA 4,000 to 20,000µA

0 to 32000

2 x µA

–

8000

The following pages explain how the Micro PLC performs the necessary data conversions
between the analog signal levels and the numeric values used by the application program.

User Manual

Chapter 5

GFK-1645M

Dec 2019

Micro PLCs with 23 Discrete Points and 3 Analog Channels

5.7.3

Analog Input Processing

The Micro PLC processes analog input channels with a 12-bit successive-approximation A/D
converter. It converts the analog value into a digital count, calculates the %AI value as
described below, then places the result into the configured %AI input reference.

Figure 33

Automatic Conversion of Analog Voltage or Current to Counts

In voltage mode, the Micro PLC first converts the 0 to 10,000mV input signal to a count in
the range of 0 to 4,000. The fixed multiplier for this conversion is 2.5.

In current mode, the Micro PLC first converts the 0 to 20,000µA input signal to a count value
in the range of 0 to 4,000. The fixed multiplier for this conversion is 5. The conversion for
both current modes (0-20mA and 4-20mA) is the same.

Automatic Gain and Offset Adjustment for Analog Inputs

The Micro PLC then converts the A/D converter's input count value from the range of 0 to
4000 to a final %AI input value in the range of 0 to 32,000. It multiplies the count value by a
stored gain value and adds an offset value to get the final analog input ($AI):

(input count X Gain) + Offset = %AI value

The default input gain used for this conversion is 8 (32000 / 4000) and the default offset is
0. These can be changed as described later. Any calculated value above 32,767 is clamped
at that maximum value. Any calculated value less than 0 is clamped at 0.

Analog Input Conversion Summary

The table below summarizes the conversion of voltage or current inputs to counts and then
to %AI values.

Input Signal

Conversi
on Factor

A/D Converter
Value

Default
Gain

Default
Offset

%AI
Range

Voltage Mode (0

–

10,000mV) 2.5

–

4000 counts

–

32,000

Current Mode (0

–

20mA)

or (4

–

20mA)

–

4000 counts

–

32,000

User Manual

Chapter 5

GFK-1645M

Dec 2019

Micro PLCs with 23 Discrete Points and 3 Analog Channels

5.7.4

Analog Output Processing

To generate the analog output signal, the Micro PLC converts the value in the %AQ output
reference into a count value for the 12-bit D/A converter, which then drives the analog
output.

Figure 34

Automatic Gain and Offset Adjustment for Analog Outputs

The application's %AQ output range of 0 to 32000 corresponds to the D/A converter's
output count range of 0 to 4000. The Micro PLC first multiplies the %AQ value from the
program by a gain value and adds a predefined offset to produce the count value for the D/A
converter:

(%AQ X Gain) + Offset = D/A count

Any calculated value that exceeds 4095 (212-1) is clamped at that maximum value. Any
calculated value less than 0 is clamped at 0. The range 0 to 4095 corresponds to %AQ values
between 0 and 32,767.

The default output gain used for this conversion is 0.125 (4000 / 32000) and the default
offset is 0. These can be changed as described later.

Automatic Conversion of Counts to Analog Voltage or Current

In voltage mode, the D/A converter then converts the count value in the range of 0 to 4,000
counts to an analog signal from 0 to 10,000mV. The output voltage gain (ratio) for this
conversion is 2.5.

In current mode, the D/A converter converts the count value to an analog signal from 0 to
20,000µA. The output current gain for this conversion is 5. The conversion for both current
modes (0-20mA and 4-20mA) is the same.

Analog Output Data Conversion Summary

The table below summarizes the conversion of %AQ values to counts and then to voltage or
current levels.

%AQ Range Default Gain, %AQ

to Counts

Default
Offset

D/A Converter
Range

Conversion
Factor

Output Signal

–

32,000

0.125

–

4,000 counts 2.5

Voltage Mode (0

–

10,000mV)

–

32,000

0.125

–

4,000 counts 5

Current Mode (0

–

20mA)

or (4

–

20mA)

User Manual

Chapter 5

GFK-1645M

Dec 2019

Micro PLCs with 23 Discrete Points and 3 Analog Channels

5.7.5

Adjusting the Calibration of Analog Channels

For the 23-point Micro PLCs with analog channels, it is possible to adjust the calibration of
the analog channels as described below. Analog channels on Expansion Units and 10-point
Nano PLCs cannot be recalibrated. A set of default gains and offsets is maintained in the PLC
firmware if you want to restore the original values.

To perform the calibration procedures, you will need a precision analog meter (1mV voltage
accuracy and 1µA current accuracy). Do not try the procedures in this section unless you are
familiar with the operation of D/A and A/D converters.

Recalibrating Input Channels

Apply a reference voltage or current at a low range to the input. (The reference signal
must be measured accurately by a precision analog meter.) Record the value.

For the channel being calibrated, read the %AI register and record the low value.

Apply a reference voltage or current at a high range to the input. Precisely measure
the reference signal and record the value.

For the channel being calibrated, read the %AI register and record the high value.

Store the calculated gain and offset values in RAM or flash memory using SVCREQ
functions 34 and 35 as instructed in Chapter 23:.

The Micro PLC automatically calculates the calibration gain and offset:

Recalibrating Output Channels

Write a low value to the %AQ register.

At the output, measure the voltage or current using a precision analog meter and
record the value.

Write a high value to the %AQ register.

At the output, measure the voltage or current using a precision analog meter and
record the value.

Store the calculated gain and offset values in RAM or flash memory using SVCREQ
functions 34 and 35 as instructed in Chapter 23:.

The Micro PLC automatically calculates the calibration gain and offset:

User Manual

Chapter 6

GFK-1645M

Dec 2019

VersaMax 28-Point Micro PLCs

Chapter 6:

VersaMax 28-Point Micro PLCs

This chapter describes the features, specifications, and field wiring of these VersaMax
Micro PLCs:

IC200UAA007 28 Point Micro PLC, (16) 120Vac In, (12) 120Vac Out, 120/240Vac Power Supply
IC200UAR028 28 Point Micro PLC, (16) 120Vac In, (2) Relay Out at 10 Amps, (10) Relay Out at

2 Amps, 120/240Vac Power Supply

IC200UDD110 28 Point Micro PLC, (16) 24Vdc In, (12) 24Vdc Out, 24Vdc Power Supply
IC200UDD120 28 Point Micro PLC, (16) 24Vdc In, (12) 24Vdc Out with ESCP, 24Vdc Power Supply

IC200UDD212 28 Point Micro PLC, (16) 12Vdc In, (12) 12Vdc Out, 12Vdc Power Supply
IC200UDR005 28 Point Micro PLC, (16) 24Vdc In, (1) 24Vdc Out, (11) Relay Out, 120/240Vac

Power Supply

IC200UDR006 28 Point Micro PLC, (16) 12Vdc In, (12) Relay Out, 12Vdc Power Supply
IC200UDR010 28 Point Micro PLC, (16) 24Vdc In, (1) 24Vdc Out, (11) Relay Out, 24Vdc Power

Supply

IC200UDR228 28 Point Micro PLC, (16) 24Vdc In, (1) 24Vdc Out, (11) Relay Out, 12/24Vdc Power

Supply

6.1

Features of VersaMax 28-Point Micro PLCs

Figure 35

•

Supports up to four Expansion Units in any combination.

•

Four removable screw-down

“

barrier-style

”

terminal strips with protective covers.

•

Two Serial communications ports. Port 1 (RS-232) supports SNP/SNPX slave
protocols. Port 2 (RS-485) supports SNP/ SNPX master and slave, RTU master and
slave protocol, and Serial I/O.

•

Run/Stop mode switch that can be configured as a run/stop switch, a memory
protect switch, and also used for clearing faults when a fatal fault exists.

•

Time-of-Day Clock.

•

Two analog potentiometers.

User Manual

Chapter 6

GFK-1645M

Dec 2019

VersaMax 28-Point Micro PLCs

•

Full-featured programming Instruction Set with floating point math. The application
program can be either Ladder Diagram (LD) or Instruction List (IL) format.

•

9K words of program memory, 2048 words of registers.

•

Flash memory (ROM) for non-volatile program storage and for system firmware

•

Configurable to read configuration at power-up from either RAM or flash memory
(ROM). Can also be configured to read application program from flash at power-up.

•

Capacitor backs up RAM and the Time-of-Day clock for at least 30 minutes.

•

Optional lithium battery backup for RAM and real-time clock.

Figure 36

6.1.1

Run/Stop Switch

The Run/Stop switch can be configured as a run/stop switch, a memory protect switch, and
used for clearing faults when a fatal fault exists.

User Manual

Chapter 6

GFK-1645M

Dec 2019

VersaMax 28-Point Micro PLCs

6.1.2

Serial Ports

Port 1 is an RS-232 serial port with an RJ-45 connector. Port 2, located behind a removable
door, is an RS-485 serial port with a standard DB-15 connector. Both ports can be used for
programming. Only one port can be used at a time for programming, but both ports can be
used for monitoring at the same time. Port 1 uses SNP slave protocol. Port 2 is software-
configurable for SNP master/slave or RTU slave operation. CPUs with firmware version 2.02
or later support Modbus RTU Master on port 2. 4-wire and 2-wire RTU are supported. If Port
2 is being used for RTU, it automatically switches to SNP slave mode if necessary. Port 2
defaults to SNP slave and automatically reverts to SNP slave when the CPU is in Stop mode,
if configured for Serial I/O.

Either port can be software-configured to set up communications between the CPU and
various serial devices. An external device can obtain power from both ports if it requires
100mA or less at 5Vdc.

6.1.3

Analog Potentiometers

The two potentiometers on the front of a Micro PLC can be used to adjust the values in
analog registers %AI016 and %AI017. An example use for the potentiometers would be to
set threshold values for use in logical relationships with other inputs/outputs.

6.1.4

Removable Terminal Strips

The removable terminal assemblies are protected by hinged covers. After turning off power
to the Micro PLC, a terminal assembly and attached field wiring can be separated from the
Micro PLC by removing two screws.

6.1.5

Status LEDs

LEDs on the Micro PLC provide quick visual verification of operating status. In addition to
LEDs for Power, OK, and Run mode, there is an LED for each I/O point.

6.1.6

Backup Battery

The Micro PLC uses a large value capacitor to provide memory retention current to the
System/User RAM and the Time-of-Day clock when the power supply is either not present
or not powered up. The capacitor retains memory contents for at least 30 minutes.

To maintain memory for longer than this, a replaceable battery assembly can be installed in
the battery holder, as described in Chapter 14:. The Micro PLC reports the battery state to
the PLC Fault Table and also uses Status Bits %SA011 and %S0014 to indicate the battery
state.

User Manual

Chapter 6

GFK-1645M

Dec 2019

VersaMax 28-Point Micro PLCs

6.2

General Specifications for 28-Point VersaMax
Micro PLCs

Module Dimensions

Height:

90mm

(3.6

inches)

Depth:

76mm

(3.0

inches)

Width: 150mm (6.0 inches)

Typical Scan Rate

1.1 ms/K for Boolean logic (see Appendix A:)

Real Time Clock accuracy (for Timer
contacts and Timer function blocks)

±0.5%

Time of Day Clock accuracy

±5

sec/day

@10°C,

±5

sec/day

@25°C,

and

±11 sec/day @55°C or across full temp. range

Maximum number of slave devices
per network

8 (can be increased with a repeater)

+5Vdc output of Serial Ports

Serial Port 1, pin 7:

100mA maximum

Serial Port 2, pin 5:

100mA maximum

Lithium battery (IC200ACC403):

shelf life

installed

Up to 5 years typical at 30 °C, Up to 3 years typical at 55 °C
4 months battery backup time (powered down) minimum at
55 °C

6.3

High-Speed Counters

VersaMax Micro PLCs with DC inputs can be configured to provide built-in high-speed
counter and pulse operation.

When configured for High-Speed Counter operation, inputs I1 to I8 can be set up as:

•

Up to four Type A Counters or

•

One Type A and one Type B Counter.

Each  counter  provides  direct  processing  of  rapid  pulse  signals  up  to  10kHz  for  industrial
control  applications  such  as  meter  proving,  turbine  flowmeter,  velocity  measurement,
material handling, motion control, and process control.

Each counter can be enabled independently. Type A counters can be configured for up or
down counting (default is up) and for positive or negative edge detection (default is
positive). The Type B counter provides an A Quad B counting function.

Models with DC outputs can be configured to provide up to a total of four counter, Pulse
Train, or PWM outputs. Relay outputs cannot be used as Pulse Train or PWM outputs.

Combined port 1 and port 2 total not to exceed 100mA max.

User Manual

Chapter 6

GFK-1645M

Dec 2019

VersaMax 28-Point Micro PLCs

6.4

IC200UAA007
28-Point Micro PLC, (16) 120Vac In, (12)
120Vac Out, 120/240Vac Power Supply

VersaMax Micro PLC model IC200UAA007 accepts sixteen AC inputs and provides twelve AC
outputs. It uses 100Vac to 240Vac nominal input power for PLC operation.

This module does not provide High-Speed Counter, PWM or Pulse Train operation.

6.4.1

Inputs

The sixteen 120Vac input circuits are reactive (resistor/capacitor) inputs. The input circuits
require an AC power source: they cannot be used with a DC power source.

Inputs are compatible with a wide range of input devices, such as pushbuttons, limit
switches, and electronic proximity switches. Power to operate the field devices must be
supplied.

6.4.2

AC Outputs

The 120/240Vac, 0.5 Amp triac outputs are provided in isolated groups. The commons are
not tied together inside the module. This allows each group to be used on different phases
of the AC supply or to be powered from the same supply. Each group is protected with a
replaceable 3.15 amp fuse for its common. Also, an RC snubber is provided for each output
to protect against transient electrical noise on the power line.

AC power to operate loads connected to outputs must be supplied from an external source.

This module provides a high degree of inrush current (10x the rated current) which makes
the outputs suitable for controlling many types of inductive and incandescent loads.

User Manual

Chapter 6

GFK-1645M

Dec 2019

VersaMax 28-Point Micro PLCs

6.4.3

Micro PLC IC200UAA007 Specifications

Item

Description

Weight

600 grams (1.32 lbs.)

Inputs

16 AC inputs

Outputs

12 AC outputs

High-Speed Counters

None

AC Power Specifications

Range

100 -15% to 240 +10%Vac

Frequency

50 -5% to 60 +5% Hz

Hold-up

10mS at 85-100Vac, 20mS at 100-264Vac

Inrush Time

2mS for 40 Amp

Inrush Current

30 Amp maximum at 200Vac, 40 Amp maximum at 265Vac

Input Current

0.10 Amp typical at 100Vac, 0.06 Amp typical at 200Vac

Input Power Supply Rating

16 VA

AC Input Specifications

Points/Common

4 (I1

–

I4) and (I5

–

I8)

Rated Load Voltage

–

132Vac, 50 -5% to 60 +5% Hz

Maximum Input Voltage

132V rms, 50/60 Hz

Input Current

8 mA rms (100Vac, 60 Hz)

Voltage

ON: minimum 80V rms, 4.5 mA rms, OFF: maximum 30V rms,
2 mA rms

Response Time

OFF to ON: maximum 25 ms, ON to OFF: maximum 30 ms

Isolation

1500V rms field side to logic side, 500V rms between groups

AC Output Specifications

Rated Load Voltage

100 -15% to 240 +10%Vac, 50 -5% to 60 +5% Hz

Maximum Resistive Load Current 0.5 Amp per point

Maximum UL Pilot Duty Rating

0.5 Amp per point at 240Vac
0.6 Amp maximum on C1 and C3
1.2 Amps maximum on C2 and C4

Maximum Inrush Current

5A (1 period)/point, 10A (1 period)/common

Maximum voltage drop when ON 1.5 V RMS

Maximum leak current when OFF 1.8 mA RMS (115Vac), 3.5 mA RMS (230Vac)

Response Time (Maximum)

OFF to ON: 1ms, ON to OFF: 1/2 cycle + 1 ms

Isolation

1500V RMS field side to logic side, 500V RMS between groups

User Manual

Chapter 6

GFK-1645M

Dec 2019

VersaMax 28-Point Micro PLCs

6.4.4

Wiring Diagram IC200UAA007

Figure 37

6.5

IC200UAR028
28-Point Micro PLC, (16) 120Vac In, (2/10)
Relay Out, 120/240Vac Power Supply

VersaMax Micro PLC model IC200UAR028 accepts sixteen AC inputs and provides two relay
outputs at 10 Amps and ten relay outputs at 2 Amps. It uses 100Vac to 240Vac nominal
input power for PLC operation.

This module does not provide High-Speed Counter, PWM or Pulse Train operation.

6.5.1

Inputs

The sixteen 120Vac input circuits are reactive (resistor/capacitor) inputs. The input circuits
require an AC power source: they cannot be used with a DC power source.

Inputs are compatible with a wide range of input devices, such as pushbuttons, limit
switches, and electronic proximity switches. Power to operate the field devices must be
supplied.

6.5.2

Relay Outputs

The Micro PLC relay outputs can control a wide range of load devices such as motor starters,
solenoids, and indicators. The switching capacity of each of these circuits is 2 amps. An
external source of AC or DC power must be supplied to operate field devices.

User Manual

Chapter 6

GFK-1645M

Dec 2019

VersaMax 28-Point Micro PLCs

6.5.3

Micro PLC IC200UAR028 Specifications

Item

Description

Weight

600 grams (1.32 lbs.)

Inputs

16 AC inputs

Outputs

2 relay outputs at 10 Amps and 10 relay outputs at 2 Amps

High-Speed Counters

None

+24Vdc Output Power Supply

200mA maximum (for input circuits and user devices)

AC Power Specifications

Range

100 -15% to 240 +10%Vac

Frequency

50 -5% to 60 +5% Hz

Hold-up

10mS at 85-100Vac, 20mS at 100-264Vac

Inrush Time

2mS for 40 Amp

Inrush Current

30 Amp maximum at 200Vac, 40 Amp maximum at 265Vac

Input Current

0.10 Amp typical at 100Vac, 0.06 Amp typical at 200Vac

Input Power Supply Rating

16 VA

AC Input Specifications

Points/Common

4 (I1

–

I4) and (I5

–

I8)

Rated Load Voltage

–

132Vac, 50 -5% to 60 +5% Hz

Maximum Input Voltage

132V rms, 50/60 Hz

Input Current

8 mA rms (100Vac, 60 Hz)

Voltage

ON: minimum 80V rms, 4.5 mA rms, OFF: maximum 30V rms, 2
mA rms

Response Time

OFF to ON: maximum 25 ms, ON to OFF: maximum 30 ms

Isolation

1500V rms field side to logic side, 500V rms between groups

Relay Output Specifications

Operating Voltage

5 to 30Vdc or 5 to 250Vac

Isolation

1500 V RMS between field side and logic side, 500 V RMS
between groups

Leakage Current

15 mA at 240Vac maximum

Maximum UL Pilot Duty Rating

2 amps at 24Vdc and 240Vac

10 amps at 24Vdc and 240Vac

Maximum Resistive Load Rating 2 amps at 24Vdc and 240Vac

10 amps at24Vdc and 240Vac

Minimum Load

10 mA

Maximum Inrush

5 amps per half cycle

14 amps per half cycle

Response Time

ON: 15 ms maximum, OFF: 15 ms maximum

Contact Life: Mechanical

20 x 106 mechanical operations

Contact Life: Electrical Voltage

Current:
Resistive
2.0A
10.0A
4.0A

Current: Lamp and
Solenoid
0.6A
4.0A
1.0A

Typical Operations
100,000
100,000
200,000

User Manual

Chapter 6

GFK-1645M

Dec 2019

VersaMax 28-Point Micro PLCs

6.5.4

Wiring Diagram IC200UAR028

Figure 38

6.6

IC200UDD110
28-Point Micro PLC, (16) 24Vdc In, (12) 24Vdc
Out, 24Vdc Power Supply

VersaMax Micro PLC model IC200UDD110 accepts sixteen DC inputs and provides twelve
24Vdc outputs. It uses +24Vdc nominal input power for PLC operation.

6.6.1

DC Power

If configured to disable power-up diagnostics, the PLC begins logic solution 100ms after the
voltage level of the  power supply input reaches and maintains  24Vdc. The 24Vdc power
source  for  the  PLC  must  have  enough  transient  current  capability  to  support  the  inrush
current  of  the  power  supply  and  to  maintain  a  24Vdc  voltage  level  (see  power  supply
specifications for inrush requirements).

User Manual

Chapter 6

GFK-1645M

Dec 2019

VersaMax 28-Point Micro PLCs

6.6.2

DC Inputs

The module has sixteen configurable DC inputs that can be used as positive or negative logic
standard inputs. As standard inputs, they are compatible with a wide range of input devices,
such as pushbuttons, limit switches, and electronic proximity switches. Eight of the inputs
can be used for High-Speed Counter inputs.

The Micro PLC +24Vdc supply can be used for input devices and to power the DC input
circuits at about 7.5 mA per input. The combination of input circuit current and external
device current must not exceed 200 mA.

6.6.3

Transistor Outputs

The module provides twelve transistor output circuits that can be used to switch devices like
valves, lamps or contactors. External fusing should be provided to protect the outputs. Fast
fuses are recommended.

The outputs can be configured as regular outputs or as outputs controlled by the High-
Speed Counters. Some outputs can be used as pulse train or pulse width modulation (PWM)
outputs.

All outputs are isolated between field and logic and are switching positive voltage. The
outputs have one common incoming supply (VC) and one common ground (COM). The
outputs are able to drive high inrush currents (8 times the rated current) and are protected
against negative voltage pulses. This makes it possible to switch lamps and inductive loads.

6.6.4

Micro PLC IC200UDD110 Specifications

Item

Description

Weight

460 grams (1.01 lbs.)

Inputs

Sixteen 24Vdc positive logic inputs in four groups of four

Outputs

Twelve transistor outputs, 24Vdc. Outputs are grouped in two
groups with separated incoming supply. Each group contains 4
outputs with a maximum load of 0.5A and 2 outputs with a
maximum load of 1A.

High-Speed Counters

Up to four Type A or one Type A and one Type B

+24Vdc Output Power Supply

200mA maximum (for input circuits and user devices)

DC Power Specifications

Range

19.2Vdc to 30Vdc

Hold-up

10mS at 19.2Vdc

Inrush Current

1 Amp maximum at 30Vdc

Inrush Time

10mS for 1 Amp

Input Current

0.20 Amp typical at 24Vdc

Input Power Supply Rating

EMERSON PACSystems VersaMax MICRO PLC & NANO PLC. USER MANUAL (2019) - page 8