30
IM 04L51B01-18EN
I/O Messages
Type Number Operationtype Instance ID Size Datatype
Communication channel 
(Read/Write)
C001 to C100 Producer / 
Consumer
185 400 (4 x 100) FLOAT
C101 to C200 Producer / 
Consumer
186 400 (4 x 100) FLOAT
C201 to C300 Producer / 
Consumer
187 400 (4 x 100) FLOAT
C301 to C400 Producer / 
Consumer
188 400 (4 x 100) FLOAT
C401 to C500 Producer / 
Consumer
189 400 (4 x 100) FLOAT
- Configuration 195 0 -
- Producer / 
Consumer
196 0 -
*  The “continuous channel data area” is a special area that enables continuous reading by limiting 
the number of channels of each module to 10.
  For only the I/O channels on a GX/GP main unit or I/O channels on a GM main unit, this area 
can be used to read data consecutively.
Explanation
•   The recorder data can be accessed using the INT32, INT16 or FLOAT type. Data can be 
accessed by the type based on the specified instance ID.
•  The operation type “Producer” indicates a read-only instance and “Producer/Consumer” 
indicates a read/write instance.
Data on the Recorder
See the explanation in the previous section on Explicit messages.