2.4 Communications with MP-series Controllers
Message Functions
2-69
Note: B: Bit data, W: Integer data
Reserved for System (PARAM13)
This parameter is used by the system.
Remote Station Data Address (PARAM14 and PARAM15)
Set the first address for data in the remote station.
Enter the first address as a decimal or hexadecimal number.
4341 hex B Reads the states of bits.
S, M, G, I, or
O
M or G
4345 hex B Changes the state of a single bit.
4346 hex W Writes to a single register.
4349 hex W Reads the contents of registers.
434B hex W Writes to multiple registers.
434D hex W Reads the contents of non-consecutive registers.
434E hex W Writes to non-consecutive registers.
434F hex B Changes the states of multiple bits.
Do not change the value of PARAM13 from a user program or by any other means.
If the first address is MW01000, enter “1000” (decimal) or “3E8” (hexadecimal).
Function Code
Target
Data
Type
Function Data Address Setting Range
00 hex −
Not used for the Extended MEMOBUS
protocol.
Disabled.
01 hex B
Reads the states of coils.
∗1
0 to 65535 (0 to FFFF hex)
02 hex B
Reads the states of input relays.
∗1
0 to 65535 (0 to FFFF hex)
03 hex W
Reads the contents of hold registers.
∗2
0 to 65534 (0 to FFFE hex)
04 hex W
Reads the contents of input registers.
∗2
0 to 65535 (0 to FFFF hex)
05 hex B
Changes the state of a single coil.
∗1
0 to 65535 (0 to FFFF hex)
06 hex W
Writes to a single hold register.
∗2
0 to 65534 (0 to FFFE hex)
07 hex −
Not used for the Extended MEMOBUS
protocol.
Disabled.
08 hex − Performs a loopback test. Disabled.
09 hex W
Reads the contents of hold registers
(extended).
∗2
0 to 65534 (0 to FFFE hex)
0A hex W
Reads the contents of input registers
(extended).
∗2
0 to 65535 (0 to FFFF hex)
0B hex W
Writes to hold registers (extended).
∗2
0 to 65534 (0 to FFFE hex)
Continued on next page.
Continued from previous page.
Function Code
Target
Data
Type
Function
Registers When Acting as
the Master
Send
Registers
Receive
Registers
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