8315 L&J Tankway Software Description | TankGate Interface |
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4.14 Modbus Gateway (MODGW)
The Modbus Gateway provides dynamic and statistical information for the communications between the Model 8310 and the Modbus masters.
4.14.1Parameters
The database parameters used by the MODGW point are listed and described below:
Configuration | Function | |
Parameters |
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ID | Slave Address that the Modbus Slave protocol handler will respond to. The | |
| default is to match the Unit Address of the TankGate. | |
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Mode | Operational Mode. The Mode is a hex value, with individual bits controlling | |
| various aspects of the operation of the Modbus Slave protocol handler. The | |
| bits have the following meanings: | |
| 0x01 | – Set Param Indexing mode |
| 0x02 | - Integer Swap mode |
| 0x04 | – Swap CRC bytes |
| 0x08 | - ASCII mode |
| 0x20 | – Wonderware Mode |
| 0x80 | - Ignore any trailing nulls in the request |
| The default is 0. | |
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BaudRate | Baud Rate for communications to the Host system. Valid values are: 1200, | |
| 2400, 2400, 9600 and 19200. Changing the BaudRate parameter will | |
| immediately change the configuration of the ComPort. | |
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ComParams | Defines the number of data bits and the parity used by the com port. Valid | |
| values include: | |
| 8N - 8 data bits, No parity | |
| 8O - 8 data bits, Odd parity | |
| 8E - 8 data bits, Even parity | |
| 7O - 7 data bits, Odd parity | |
| 7E - 7 data bits, Even parity | |
| The default is ‘8N’. | |
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DetectTime | Modbus RTU Mode character timer (in 1/100s of a second) | |
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Dynamic | Function |
Parameters |
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Message | Current request message, displayed in hex format |
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48 | Installation and Operations Manual |
