Fm210_01b_oi_e.docx / Nov-20
Page 34 / 40
To execute a "Store EEProm" the following string must be sent:
Designation:
ADR
FCT
REH
REL
DAH
DAL
CRCL CRCH
Hexadecimal:
07
06
FF
FE
00
02
34
49
Binär:
0000
0111
0000
0011
1111
1111
1111
1110
0000
0000
0000
0010
0011
0100
0100
1001
With negative parameter values such as -10000, the value must be divided into two 16-bit values and
transmitted with two write accesses. (-10000 dec = FFFF D8F0 hex)
An ID can be requested to identify the unit:
To request an ID, the following string must be sent:
Designation:
ADR
FCT
CRCL CRCH
Hexadecimal:
07
11
C3
8C
Binary:
0000
0111
0001
0001
1100
0011
1000
1100
The answer of the unit is if the request is correct:
Designation:
ADR FCT BYTE RUN
DATA
CRCL CRCH
Hexadecimal:
07
11
12
FF
46 4D 32 31 30 20 20 20
46 4D 32 31 30 30 31 42
C9
00
Binary:
0000
0111
0001
0000
0001
0020
1111
1111
1100
1001
0000
0000
46 4D 32 31 30 30 31 42 corresponds in ASCII format: FM21001B
Here the unit header, which is also visible in the OS, is displayed. It identifies the unit
(FM210) with software version (01B) and, if available, the special number.
Splitting of the memory area
Memory address (dec)
MODBUS-FCT
R-access
Read / Write
Note
0…207
0…204
(32 Bit)
03 (R)
06 (W)
2-124 Words
1 Word
R/W
Parameter area
1000..1127
1000..1124 (32 Bit)
03 (R)
2-64 Words
Read only
variable area
FF00
–
FF16
FFFE (hex, 16 Bit)
06 (W)
06 (W)
1 Word
1 Word
Write only
Write only
Command area