Справочник Пользователя для Varec 8315 Series

8315 L&J Tankway Software Description

TankGate Interface

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Installation and Operations Manual

4.14 Modbus Gateway (MODGW)

The Modbus Gateway provides dynamic and statistical information for the 

communications between the Model 8310 and the Modbus masters.

The database parameters used by the MODGW point are listed and described below:

Configuration 

Parameters

Function

ID

Slave Address that the Modbus Slave protocol handler will respond to. The 

default is to match the Unit Address of the TankGate.

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. 

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.

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’.

DetectTime

Modbus RTU Mode character timer (in 1/100s of a second)

Dynamic 

Parameters

Function

Message

Current request message, displayed in hex format