ATSEL HMI User Manual
Address setting
Function introduction
1. RS485
（
Siemens S7-200
）【
PPI communication
】
same as S7 communication
Register
name
Address
format
Input range Remark
I dd.o 0.0~4095.7 bit: input mapping register
Q dd.o 0.0~4095.7 bit: output mapping register
M dd.o 0.0~4095.7 bit: bit memory
S dd.o 0.0~4095.7 bit: Sequence Control Relay
SM dddd.o 0.0~4095.7 word: special bit memory, SM0.0~SM4095.7
V ddddd.o 0.0~10239.7 bit: the bit of variable memory
IW dddd 0~4094 word: input mapping register, each word occupies two byte address
QW dddd 0~4094 word: output mapping register, each word occupies two byte address
MB dddd 0~4095 byte: bit register, each word occupies one byte address.
MW dddd 0~4094 word: bit register, each word occupies two bytes address.
MD dddd 0~4092 double word: bit register, each word occupies four bytes address.
SB dddd 0~4095 byte: sequence control relay, each word occupies one byte address.
SW dddd 0~4094 word: sequence control relay, each word occupies two bytes address.
SD dddd 0~4092 double word: sequence control relay, each word occupies four bytes address.
SMB dddd 0~4095 word: special bit memory, SMB0-SMB29 read only, each word occupies one byte address.
SMW dddd 0~4094 word: special bit memory, SMW0-SMW28 read only, each word occupies two bytes address.
SMD dddd 0~4092 word: special bit memory, SMD0-SMD26 read only, each word occupies two bytes address.
VB ddddd 0~10239 Byte: variable memory
VW ddddd 0~10238 word: variable memory, each word occupies two bytes address.
VD ddddd 0~10236 double word: variable memory, each word occupies four bytes address.
TV ddd 0~255 word: the current value of the timer.
CV ddd 0~255 word: the current value of the counter.
AIW dd 0~62 word: analog input, each word occupies two addresses.
AQW dd 0~62 word: analog output, each word occupies two addresses.
2. RS485-Siemens S7-300
（
MPI communication
）
Register Name Address format Input range remark
I dddd.o 0.0~1023.7 bit: input mapping register
Q dddd.o 0.0~1023.7 bit: output mapping register
M dddd.o 0.0~255.7 bit: bit memory
DBX DDD:dddd.o 1:0.0~99:32767.7 bit: the bit for the word in DB block storage area. The block no. DDD 0-99.
Each block word dddd with range 0-32767 and each word’s bit is 0-7.
IW dddd 0~1022 word: input mapping register, each word occupies two byte address
QW dddd 0~1022 word: output mapping register, each word occupies two byte address
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