GFK-1504N
Chapter 9 Discrete Mixed Modules
9-13
9
IC200MDD843
Mixed Module, 24 V DC Positive Logic Input Grouped 10 Points /
Output Relay 2.0 A per Point Grouped 6 Points
Discrete input/output module IC200MDD843 provides 10 discrete inputs and 6
relay outputs. The inputs form one group of 10 points. Inputs are positive logic or
sourcing-type inputs; they receive current from input devices and return the
current on the common. The relay outputs form one group of 6 points. The output
group can drive a maximum of 8 A.
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IC200MDD843
IN 24VDC 10PT
OUT RLY 2A 6PT
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
OK
I/Q
Power for module operation comes from the backplane. Loads must be powered
by an external source.
Intelligent processing for the module is performed by the CPU or NIU. The module
provides 10 bits of discrete input data and receives 6 bits of discrete output data.
LED Indicators
Individual green LEDs indicate the on/off state of the output points and input
points. The output LEDs are logic-driven and independent of the load conditions.
The green OK LED is ON when backplane power is present to the module.
Configuration Parameters
The module’s basic input on/off response time is 0.5ms. For some applications, it
may be preferable to add additional filtering to compensate for conditions such as
noise spikes or switch bounce. Input filter times of 0ms, 1.0ms, or 7.0ms are
selectable through software configuration, for total response times of 0.5ms,
1.5ms, and 7.5ms respectively. The default is 1.0ms filter time total (response
time is 1.5ms).