In the property sheet of the ModbusTcpNetwork (Figure 12), you review the default global values for Modbus device data (the network automatically binds to the local TCP/IP address of the JACE).
Note the ModbusTcpNetwork has the standard collection of network components, such as for status, health, monitor, tuning policies, and poll scheduler. For more details, see “Common network components” in the Drivers Guide.
In addition, the following properties have special importance:
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“Global” Modbus device defaults, which (as needed) can be overridden in the Modbus Config (client device level) slot of any child ModbusTcpDevice:
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Float Byte Order
Specifies the byte-order used to assemble or receive floating-point (32-bit) values in messages.
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Long Byte Order
Specifies the byte-order used to assemble or receive long integer (32-bit) values in messages.
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Use Force Multiple Coil
Specifies whether to use function code 15 (Force Multiple Coils) instead of function code 05 (Force Single Coil) when writing to coils. The default is false, where function code 05 (Force Single Coil) is used.
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Use Preset Multiple Register
Specifies whether to use function code 16 (Preset Multiple Registers) instead of function code 06 (Preset Single Register) when writing to registers. The default is False, where function code 06 (Preset Single Register) is used.
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Other ModbusTcpNetwork properties such as “Retry Count”, “Response Timeout”, and “Max Fails Until Device Down” are typically left at defaults, unless particular reasons dictate change.
Double-click the ModbusTcpNetwork for the default Modbus Tcp Device Manager view, which you can use to add new ModbusTcpDevice children. For general information, see “About the Device Manager” in the Drivers Guide. See Modbus Tcp Device Manager notes for additional details.