Varec TankGate Interface 8315 Series, Installation & Operation Manual, Page: 40 / 120

8315 L&J Tankway Software Description TankGate Interface
30 Installation and Operations Manual
TankGate responds to the following Function Codes:
There are two methods for data addressing within the TankGate
•The TankGate has a fixed Modbus Map of selected parameters
•Gateway Block (GWBLK) software blocks can be configured to set the data address
4.5.2 Fixed Modbus Map
For each version of the TankGate, there is a fixed map of data registers. A partial
example is shown below:
Function Code Description Comments
3
Read Output
Register
FC 3 and FC 4 are treated the same. Use either FC 3 or FC 4
to read data from the TankGate
4
Read Input
Register
5
Force Single
Output
Status
FC 4 and FC 6 are treated the same. Use either FC 5 or FC 6
to write data to the TankGate
6
Preset Single
Register
15
Force
Multiple
Outputs
FC 15 and FC 16 are treated the same. Use either FC 15 or
FC 16 to write multiple registers to the TankGate
16
Preset
Multiple
Registers
Address Type Number Parameter Data Type
5000
WV1900 0 Command CODED
5001
WV1900 0 Level REAL
5003
WV1900 0 Temp REAL
5005
WV1900 0 Value REAL
5007
WV1900 0 Status HEX
5008
WV1900 0 PntStatus IHEX
5009
WV1900 0 Elapse TIME
5011
WV1900 1 Command CODED
5012
WV1900 1 Level REAL
5014
WV1900 1 Temp REAL
5016
WV1900 1 Value REAL