GFK-1504N
Chapter 9 Discrete Mixed Modules
9-23
9
IC200MDD845
Mixed Module, Output Relay 2.0 A Isolated 8 Points
/ Input 24 V DC Pos/Neg Logic Grouped 16 Points
Discrete input/output module IC200MDD845 provides 8 individually-isolated Form
A relay outputs and two groups of 8 discrete inputs. An output contact is closed
when the host CPU is active and the corresponding output logic bit is “1”. Inputs in
each group can be either positive logic inputs that receive current from input
devices and return the current on the common, or negative-logic inputs that
receive current from the common and return current to the input device. Input
devices are connected between the input terminals and common terminals. Note:
Negative-logic functionality requires module version IC200MDD845C or higher.
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IC200MDD845
OUT RLY 2A ISO 8PT
IN 24DC POS/NEG 16PT
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
OK
Q
I
OK
Power for module operation comes from the backplane. Loads must be powered
by an external source.
Intelligent processing for this module is performed by the CPU or NIU. The
module provides 16 bits of discrete input data and receives 8 bits of discrete
output data.
LED Indicators
Individual green LEDs indicate the On/Off states of the output points and input
points. Operation of the output LEDs is logic driven and independent of the load
conditions.
The green OK LEDs are ON when backplane power is present to the module.
