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