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Appendix
C
C-1
ControlNet Instruction Set
ControlNet I/O T ransfer Instruction
Instruction Description
CIO
CNET I/O TRANSFER
Control block CT21:50
ControlNet I/O Transfer
CT
Status Bits
If the input conditions go from false to true, the data is
transferred according to the instruction parameters you set
when you enter the ControlNet I/O transfer instruction.
The Control Block (CT21:50) contains status and instruction
parameters.
You cannot use N (integer) control blocks on the
ClN k
Status
Bits
TOTimeOut Bit
EWEnabledWaiting Bit
COContinuous Bit
ERError Bit
DNDone Bit
STStart Bit
ENEnable Bit
(g)
ControlNet network.
For continuous CIOs, condition the rung to be true for only
one scan.
Message Instructions on a ControlNet Network
Instruction Description
MSG
SEND/RECEIVE MESSAGE
Control block MG10:10
Message
MSG
Status Bits
TO Time Out Bit
If the input conditions go from false to true, the data is
transferred according to the instruction parameters you set
when you enter the message instruction. The Control Block
(MG10:10) contains status and instruction parameters.
You cannot use N (integer) control blocks on the ControlNet
network
TOTimeOut Bit
EWEnabledWaiting Bit
COContinuous Bit
ERError Bit
DNDone Bit
STStart Bit
ENEnable Bit
ne
t
wor
k
.
For continuous MSGs, condition the rung to be true for only
one scan.