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7 COMMANDS AND FUNCTIONS
7.1 Command List
Serial communication dedicated commands
Commands for 2C frame
The following shows the commands for 2C frame.
The commands for 4C/3C frame are equivalent to the following device access commands and subcommands.
Commands for 1C/1E frame
For the commands for 1C/1E frame, refer to the following sections.
• Page 349 Command and Function Lists for 1C Frame
• Page 396 Commands and Function List for 1E Frame
Function Command Description Subcommand
User frame Read
registered data
0610 Read the contents of registered user frames. 0000
Register data 1610 Register user frames to C24. 0000
Delete
registered data
Delete the registered user frame. 0001
Global 1618 Turn ON/OFF the global signal (X1A/X1B).
This can be performed to a connected station and multidrop connection station.
0000
0001
Initialize transmission sequence 1615 Terminate a current processing request, and place C24 into the wait state to
receive commands.
This can be performed to a connected station and multidrop connection station.
0000
Switch mode 1612 Switch the operation mode and transmission specifications of the specified
interface.
This can be performed to a connected station and multidrop connection station.
0000
Programmable
controller CPU
monitoring
Register 0630 Register the conditions to monitor and start the programmable controller CPU
monitoring.
0000
Deregister 0631 End the programmable controller CPU monitoring. 0000
On-demand 2101 Issue a transmission request to C24 from CPU module, and transmit data to
external devices.
Function 2C frame
command
4C/3C frame Description
command subcommand
Batch read
and write
Batch read in
bit units
1 0401 0001 Read values from devices in bit units.
Read the values in batch with specifying the consecutive device points.
Batch read in
word units
2 0000 Read values from devices in word units.
Read the values in batch with specifying the consecutive device points.
Batch write in
bit units
3 1401 0001 Write values to devices in bit units.
Write the consecutive devices in batch with specifying the consecutive
device points.
Batch write in
word units
4 0000 Write values to devices in word units.
Write the consecutive devices in batch with specifying the consecutive
device points.
Random read
and write
Random read
in word units
5 0403 0000 Read values from devices in word or double-word units.
Read device values with specifying device numbers.
Discontinuous device numbers can be specified.
Random write
in bit units
(test)
6 1402 0001 Write values to devices in bit units.
Write device values with specifying device numbers.
Discontinuous device numbers can be specified.
Random write
in word units
(test)
7 0000 Write values to devices in word or double-word units.
Write device values with specifying device numbers.
Discontinuous device numbers can be specified.
Monitor
device
memory
Register
monitor data
8 0801 0000 Register the devices to be monitored.
Monitor 9 0802 0000 Read the values of registered devices.
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