Normal Indication - Omron PRT1-COM Operation Manual

Normal Indication

9-1

Normal Indication

I/O Unit Interface Status
Unit Indicators
158
When a MULTIPLE I/O TERMINAL is operating normally, the status will be as
follows:
During normal operation, the status of the I/O Unit interface is set in the first two
words of the MULTIPLE I/O TERMINAL input area as shown in the following
diagram.
First word + 0
First word + 1
During normal operation, the front-panel indicators of each Unit will be as shown
in the following diagram.
Communication Unit
Input area
80 Hex
0x Hex
Bits corresponding to the addresses of I/O
Units that are actually connected will be
turned ON (1). Bits 0 to 7 correspond to
addresses 0 to 7.
TS: Lit
green
Basic I/O Unit Special I/O Unit
Section 9-1
TS: Lit green
PWR: Lit green
U.ERR: Not lit