Siemens SITRANS SL - Page 143

Interfaces to automation systems
8.2 Modbus interface
SITRANS SL
Operating Instructions, 12/2010, A5E01132948-04
145
Modbus addresses 5000 ... 5999
Long Integer registers
Access to long integer data is an extension of the Gould Modbus ASCII protocol. Long
Integer registers are read using function code 03
Table 8- 9 Long Integer registers
Enron
Modbus
address
Access Data Address Description
5001 read 5000 Component 1 – Concentration
Alarm
5002 read 5001 Component 1 – Transmission
Alarm
5003 read 5002 Component 3 – Pressure
Alarm
5004 read 5003 Component 4 – Temperature
Alarm
5101 read 5100 Component 1 – Concentration
Measurement counter
5102 read 5101 Component 1 – Transmission
Measurement counter
5103 read 5102 Component 3 – Pressure
Measurement counter
5104 read 5103 Component 4 – Temperature
Measurement counter
Modbus addresses 7000 ... 7999
Floating Point registers
Access to floating point data is an extension of the Gould Modbus ASCII protocol. Floating
point registers are read using function code 03 or set using function code 16.
Table 8- 10 Floating Point registers
Modicon-
modbus-
address
Type Data Address Description
7001 read 7000 Component 1 – Concentration value
7002 read 7001 Component 2 – Transmission value
7003 read 7002 Component 3 – Pressure output value
7004 read 7003 Component 4 – Temperature output value
7101 write 7100 Component 1 – Pressure input value
7102 write 7101 Component 1 – Temperature input value