Mitsubishi Electric MELSEC IQ-R series Reference Manual page 386

Special function module No.
Specify the last input/output signal (I/O address) of the special function module. (Specify the upper 2-digit in 3-digit
representation.)
Convert the numerical value to 2-digit ASCII code (hexadecimal), and send it from the upper digits.
■Special function module No. which occupies 1 slot
Special function module No. is the upper 2 digits of the input/output signal (I/O address) of the last number represented with 3-
digits on the slot where the module is mounted.
Power CPU
supply module
module
Power
Input
supply
module
16 points
D0 to DF
■Special function module No. which occupies 2 slots
For a special function module which occupies two slots, the number of occupied points for each slot is fixed for each module.
Special function module No. specified for the operation procedure is the upper 2 digits of the input/output signal (I/O address)
of the last number represented with 3-digits of the slot assigned as a special function module on the slot.
For details of the assigned slot for each module, refer to the manual of the modules.
Ex.
A module that assign the first part of the slots as empty slots (AD72, A84AD, etc.)
(Empty Special
slot) function
module
16 points 32 points
00 to 0F 10 to 2F
Ex.
A module that assign the last part of the slots as empty slots (A61LS, etc.)
Special (Empty
function slot)
module
16 points
32 points
00 to 0F 20 to 2F
Ex.
A module in which both assignment of special function module and I/O assignment exist (A81CPU)
Special Input
function module
module
64 points
64 points
00 to 3F 40 to 7F
17 COMMUNICATING USING 1C FRAMES
384
17.6 Read and write Buffer Memory of Special Function Module
Input Output Input
16 points 32 points 16 points
00 to 0F 10 to 2F 30 to 4F
Special
Output Output Output
function
module
32 points 32 points 32 points 32 points
E0 to FF 100 to 11F 120 to 13F 140 to 15F
Module No. "02H"
Module No. "01H"
Module No. "03H"
Special Special
Output Input
function function
module module
32 points 32 points 16 points 32 points
50 to 5F 60 to 7F 80 to 8F 90 to AF
Output
32 points
B0 to CF
Module No. "0AH"
Module No. "07H"
Module No. "13H"