3 Description of functions
3-70
• Subcommand
Item
bit units
word units
*1: Use subcommand 008 if accessing a link direct device, module access device, or CPU buffer memory
access device. When the subcommand is set to 008, the message format will differ. (Reading, writing by
specifying device extension)
• Number of devices for bit access, Number of devices for word access, Number of devices for double-word access
Specify the number of target devices.
0002
Number of devices
for bit access
Specify the number of bit devices in 1-bit units.
for word access
Specify the number of devices for 1 word access.
The applicable units are 16-bit units for bit devices, and
1-word units for word devices.
for double-word
Specify the number of devices for 2 word access.
The applicable units are 32-bit units for bit devices, and
2-word units for word devices.
0000
Number of devices
for bit access
Specify the number of bit devices in 1-bit units.
for word access
Specify the number of devices for 1 word access.
The applicable units are 16-bit units for bit devices, and
1-word units for word devices.
for double-word
Specify the number of devices for 2 word access.
The applicable units are 32-bit units for bit devices, and
2-word units for word devices.