Measurement-computing PC104-PDISO8 User Manual download pdf (Page 11)

3.2.1 ON & OFF for FORM C RELAYS

On means that FORM C relay common is in contact with the Normally-Open

(NO) contact.

Off means that FORM C relay common is in contact with the

Normally-Closed (NC) contact.

3.2.2 ON & OFF FOR FORM A RELAYS

On means that FORM A relay common is in contact with the Normally-Open

(NO) contact.

Off means that FORM A relay common is open.

3.3 INPUT REGISTER

The isolated input register is located at

BASE

address + 1.

WRITE = NO FUNCTION

READ = STATUS: Read the status of the isolated inputs. A one in the input bit

position indicates that a voltage is present at the input.

INPUT #

7 6 5 4 3 2 1 0

BIT No. 76543210

HEX 804020108421

DECIMAL 1286432168421

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 19 20

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Measurement-computing PC104-PDISO8 User Manual Page 11