
Instruction Set
Block Transfer
3-46
block transfer instructions continued...
Instruction
Description
ControlNet I/O Transfer
CT
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
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 ControlNet network.
For continuous CIOs, condition the rung to be true for only
one scan.
CNET I/O TRANSFER
Control block
CT21:50
CIO