74
Parameters Beginning word (command): Specify in BCD the address of first word to be
read from Link Area as an offset from CIO 1000. The setting can be between
0000 and 0063.
No. of words (command): Specify in BCD the number of words to read from the
CIO Area between 0001 and 0064.
Data from beginning word (response): The contents of the beginning word
will be returned in hexadecimal and followed immediately by the contents of the
remaining words requested in the command.
5-4 HOLDING AREA READ
Reads the contents of the specified number of Holding Area words (CIO 1200 to
CIO 1299), starting from the specified offset from the beginning of the area. This
command will be processed properly regardless of whether or not the Holding
Area is actually set for use as holding words.
Command Format
@ RH
Unit no. Beginning word FCS TerminatorHeader code No. of words
*s
x 10
0
x 10
1
x 10
3
x 10
2
x 10
1
x 10
0
x 10
3
x 10
2
x 10
1
x 10
0
Response Format
@ RH
Unit no. FCS TerminatorHeader
code
Data from beginning wordResponse
code
Data
*s
x 10
0
x 10
1
x 16
1
x 16
0
x 10
3
x 10
2
x 10
1
x 10
0
Parameters Beginning word (command): Specify in BCD the address of first word to be
read from Link Area as an offset from CIO 1200. The setting can be between
0000 and 0099.
No. of words (command): Specify in BCD the number of words to read from the
CIO Area between 0001 and 0100.
Data from beginning word (response): The contents of the beginning word
will be returned in hexadecimal and followed immediately by the contents of the
remaining words requested in the command.
5-5 PV READ
Reads the specified number of timer/counter PVs (present values) starting from
the specified timer/counter.
Command Format
@ RC
Unit no. Beginning
timer/counter
FCS TerminatorHeader code No. of timers/counters
*s
x 10
0
x 10
1
x 10
3
x 10
2
x 10
1
x 10
0
x 10
3
x 10
2
x 10
1
x 10
0
Response Format
@ RC
Unit no. FCS TerminatorHeader
code
PV from beginning
timer/counter
Response
code
Data
*s
x 10
0
x 10
1
x 16
1
x 16
0
x 10
3
x 10
2
x 10
1
x 10
0
PV READ Section 5-5