Supported pcccs – Rockwell Automation 1785-Vx0B, D17856.5.9 PLC-5 VME VMEbus Programmable Controllers User Manual User Manual
Page 72
Chapter 6
PLC-5/VME Processor
Communications Commands
6-3
All PCCCs supported by the PLC-5 processor are supported by the
PLC-5/VME processor. Since only a subset are useful to driver programs,
only the useful subset and the PCCCs compatible with the “selective
commands” of the 6008-LTV processor are described here.
PCCC Name
6008-LTV Processor
(Equivalent Name)
Command FNC
Page
Sample
Echo
Echo
06H
00H
6-5
B-59
Identify host and status
Identify PLC-5/VME
processor, report status
06
03
6-6
B-67
Read-modify-write
Write bit
0F
26
6-8
B-76
Typed read
Read block
0F
68
6-10
Typed write
Write block
0F
67
6-18
Set CPU mode
Set processor mode
0F
3A
6-20
B-84
Upload all requests
Set upload privilege
0F
53
6-21
B-87
Download all requests
Set download privilege
0F
50
6-23
B-53
Upload complete
Restart after upload
0F
55
6-24
B-50
Download complete
Restart after download
0F
52
6-25
B-56
Read bytes physical
Physical read
0F
17
6-26
B-70
Write bytes physical
Physical write
0F
18
6-27
B-44
Get edit resource
0F
11
6-29
B-62
Return edit resource
0F
12
6-30
B-73
Apply port configuration
0F
8F
6-31
B-47
Restore port configuration
0F
90
6-32
B-81
Status codes returned in the reply packet are not defined for each PCCC,
but they are listed together in a subsequent section.
Some PCCCs require the specification of a system address as part of the
data. PCCCs support different formats of system addresses, but the only
form described in this manual is a binary memory address of something in
the file storage of the processor. The form recommended is compatible
with the form used in the 6008-LTV processor. Thus, the term “system
address” in the context of the following command descriptions is the
following seven-byte value.
06
FF
file number
FF
element number
For instance, the 7-byte system address 06 FF 01 00 FF 02 01 specifies
element 258 (0102h) in file 1 (0001h).
Supported PCCCs