Phoenix Contact RAD-900-DAIO6

Addressing I/O extension modules and RAD-900-DAIO6 with Modbus RTU
3827_en_B PHOENIX CONTACT 111/138
RSSI signals - address area 35001 ... 35250, function code 04
Example for reading an RSSI register of the station with RAD ID = 02:
function code 04, start address 5001 (hex1389)
I/O input data, address area 30010 ... 30999
Modbus function code 04
I/O output data, address area 40010 ... 40999
Modbus function code 03, 16
RAD-PT100-4-IFS
I/O-
MAP
High byte 15 ... 8 Low byte 7 ... 0
30 xx 0
Currentness of data Module type ID
X X X X X X X X X
30 xx 1 Reserved
30 xx 2
T1
X X X X X X X X X X X X X X X X
30 xx 3
T2
X X X X X X X X X X X X X X X X
30 xx 4
T3
X X X X X X X X X X X X X X X X
30 xx 5
T4
X X X X X X X X X X X X X X X X
30xx6 ... 30xx9 reserved
Example for reading the temperature T1 (I/O-MAP = 02):
function code 04, start address 21 (hex15)
.... . . . .... . . .
.... . . . .... . . .
30 99 0 40 99 0
RAD ID
15...4 3 2 1 0 Bit
35 001 RSSI: RAD ID = 01 - Master
. RSSI: RAD ID = 02
. RSSI: RAD ID = 03
. ...
35 250 RSSI: RAD ID = 250