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Report Generation
Chapter 23
23-14
You can display any of the six messages when the corresponding bit 10-15
of word 027 is latched on. An example program to display one of the
messages 1-6 is shown in Figure 23.4. Three programming rungs are
required to display each stored message. The rungs must be programmed
in the order shown.
Figure 23.4
Example Program For Displaying Messages (16)
265
04
L
027
10
027
16
Event
Bit
Busy
Request Bit
Message (1)
Bit
Storage
U
027
10
Request Bit
Message (1)
Bit
Storage
027
Bit
Done
17
RUNG 1
RUNG 2
RUNG 3
Additional Messages
The upper byte of each message control word contains the request bits for
eight messages.
Figure 23.5
Bit Address and Message Number Relationship
0
1
2
3
4
5
6
7
201
010-017
110-117
210-217
310-317
410-417
510-517
610-617
710-717
202
203
204
205
206
207
210
Control Word
Control Word
Message
Numbers
Address
Number