Rockwell Automation 1747-KE,D17476.12 DH-485/RS-232C Interface Module - Manual (Page 82)

Publication 1747-UM005B-EN-P - March 2006
6-16 Module Configuration Using the Backplane
Use the Real Time Clock You can use the interface module as a Real Time Clock in conjunction
with normal module operation.
Set up the Calendar/Clock Function by using the configuration
instructions found on page 6-2 and the configuration packet
information shown below.
SLC Output Status to the Interface Module
Bit
Word
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0
(1) Module
Mode
Bit Data
Hand
shake
Bit Read
or
Write
Bit Reset
Interface
Module
Bit
Reserved Data ID=1
1 Day (1...31)
2 Month (1...12)
3 Year (00...99)
4 Day of the Week (1...7, where Sunday=1 and Saturday=7)
5 Hour (0...23 [only 24 hour clock is available])
6 Minute (0...59)
7 Second (0...59)
(1)
The output status word is defined on page 6-6. To set the Real Time Clock, the Read or Write Bit must be 1. To read the Real Time Clock, the Read or Write
Bit must be 1 and the Module Mode Bit can either be at 0 or 1.