RKC INSTRUMENT COM-JG, Инструкция по эксплуатации

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8. USAGE EXAMPLE
IMR01Y35-E3 69
Setting of usage example
In this example, the Modbus register addresses of the connected Z-TIO and Z-DIO modules each have
different contents, and thus the static data read/write range setting is required.
To enable static data read/write access by module, it is recommended that a table be created that shows
the correspondence between communication item groups and controller addresses.
For one type of module, set the validate data range to one channel for read and one channel for write.
Controller address
Communication
item
No. 1 No. 2 No. 3 No. 4
Corresponding
module
Static data
read/write
range channel
Group 1
Group 2
Group 3
Z-TIO Read CH1
Group 4
Group 5
Z-DIO Read CH2
Group 6
Group 7
Z-TIO Write CH1
Group 8 Z-DIO Write CH2
:
Validate data
:
Static data read/write range
In the above table, two channels are set for read and two channels are set for write. The “Number of
connected modules” is set in the upper hexadecimal byte, and the “Number of communication items”
is set in the lower byte.
Static data
read/write
range channel
Number of
connection modules
(Set value upper-byte)
Number of
communication items
(Set value lower-byte)
Set value
Read CH1 3 3 0303H (771)
Read CH2 1 2 0102H (258)
Write CH1 3 2 0302H (770)
Write CH2 1 1 0101H (257)
Based on the above, the static data read range and the static data write range are set as shown below.
“Static data read/write range” setting
COM-JG initial setting item Set value
Static data read range CH1 0303H (771)
Static data read range CH2 0102H (258)
Static data read range CH3 0
Static data read range CH4 0
Static data read range CH5 0
Static data write range CH1 0302H (770)
Static data write range CH2 0101H (257)
Static data write range CH3 0
Static data write range CH4 0
Static data write range CH5 0
Static data read ranges CH3 to CH5 and
static data write ranges CH3 to CH5 are
not used, and thus the set value is “0.”
No. 1 to No. 4
correspond to
the 1st to the 4th
module.