2.6 Communications with a Mitsubishi PLC (A-compatible 1E Frame protocol)
Message Functions
2-121
Note: 1. B: Bit data, W: Integer data
2. AnCPU special instructions cannot be used. Use the ACPU common instructions to access the AnCPU. The
extended file registers in the AnCPU cannot be accessed either.
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.
The applicable function codes and valid range of data addresses depend on the device type and device
range of the Mitsubishi Q/A-series PLC.
0E hex 05 hex B
Sets/resets word devices in units of one point by
specifying a device number.
31 hex 60 hex W Writes to a fixed buffer in units of one word.
32 hex 61 hex W
Reads from the random access buffer in units of
one word.
33 hex 62 hex W
Writes to the random access buffer in units of one
word.
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).
Bit Device Conversion Table
Device
Device Range for
ACPU Common
Instructions
Notation Function Code
Data Address
Setting Range
Correspond-
ing Register
Addresses
X X0000 to X07FF
Hexadeci-
mal
02 hex: Input relays 0 to 2047
MB000000 to
MB00127F
Y Y0000 to Y07FF
Hexadeci-
mal
01 and 0F hex: Coils 0 to 2047
MB000000 to
MB00127F
M M0000 to M2047 Decimal 01, 05, and 0F hex: Coils 2048 to 4095
MB001280 to
MB00255F
M M9000 to M9255 Decimal 01, 05, and 0F hex: Coils 4096 to 4351
MB002560 to
MB00271F
B B0000 to B03FF
Hexadeci-
mal
01, 05, and 0F hex: Coils 4352 to 5375
MB002720 to
MB00335F
F F0000 to F0255 Decimal 01, 05, and 0F hex: Coils 5376 to 5631
MB003360 to
MB00351F
TS TS000 to TS255 Decimal 02 hex: Input relays 2048 to 2303
MB001280 to
MB00143F
TC TC000 to TC255 Decimal 02 hex: Input relays 2304 to 2559
MB001440 to
MB00159F
CS CS000 to CS255 Decimal 02 hex: Input relays 2560 to 2815
MB001660 to
MB00175F
Continued from previous page.
Function Code
Common
Instructions for
MELSEC ACPUs
Target
Data Type
Function
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