Varec 8315 Series manual Current command. Values include

8300 8315 L&J Tankway Software Description

Dynamic	Function
Parameters
Command	Current command. Values include:
	1	- Read Output Status
	2	- Read Input Status
	3	- Read Output Registers
	4	- Read Input Registers
	5	- Force Single Coil
	6	- Preset Single Register
	15 - Force Multiple Coils
	16 - Preset Multiple Registers
Addr	Data Address for current request
Elapse	Time of the last request from the master
PntCheckSum	CRC-16 Checksum of point's static Configuration Parameters

4.14.2Application

The MODGW point provides status information for the communications with any Modbus masters used with the TankGate. On the TankGate Motherboard, the MODGW point is created automatically whenever the Modbus Slave protocol is defined for a COM point. The point number created will correspond to the ComPort such that MODGW.1 is created for COM 1. Use the Upload command from the Config Menu to retrieve the data from the MODGW point or any other points created automatically by the RTU.

The MODGW point provides information about the current command and data address requested by the Modbus master system. The MODGW provides assurance that requests are being received and processed.

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