PILZ 301140 memory

This parameter defines the first register of floating-point data. All requests with register values greater-than or equal to this value will be considered floating-point data requests. This parameter is only used if the Float Flag is enabled. For example, if a value of 7000 is entered, all requests for registers 7000 and above will be considered as floating-point data.This parameter defines the start register for floating-point data in the internal database. This parameter is used only if the Float Flag is enabled. For example, if the Float Offset value is set to 3000 and the float start parameter is set to 7000, data requests for register 7000 will use the internal Modbus register 3000.

MNET Client x Commands

The [MNET Client x Commands] section of the configuration sets the Modbus master port command list. This command list polls Modbus slave devices attached to the Modbus master port. The module supports numerous commands. This permits the module to interface with a wide variety of Modbus protocol devices. The function codes used for each command are those specified in the Modbus protocol (page 73). Each command list record has the same format. The first part of the record contains the information relating to the MVI46-MNET communication module and the second part contains information required to interface to the Modbus slave device

Command List Overview

 In order to interface the MVI46-MNET module with Modbus TCP/IP Server devices, you must construct a command list. The commands in the list specify the Server device to be addressed, the function to be performed (read or write), the data area in the device to interface with and the registers in the internal database to be associated with the device data. The Client command list supports up to 100 commands. The command list is processed from top (command #0) to bottom. A poll interval parameter is associated with each command to specify a minimum delay time in tenths of a second between the issuance of a command. If the user specifies a value of 10 for the parameter, the command will be executed no more frequently than every 1 second.