Varec 8315 Series Manuale Utente

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

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