Modicon Driver Tag Type Properties: Options Tab
The Options tab of the Modicon driver tag properties folder can be used to set byte swapping for long integer, IEEE single or IEEE double bytes. The Options tab is also used to determine if squelch noise is present and should be suppressed.
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The Comm Channel section enables you to select a radio button indicating the communication channel and protocol to use for this Modicon driver. The default communications protocol is Serial RTU. This will be one of:
• Serial RTU When selected, the Serial RTU radio button indicates that you wish to use the RTU mode of the Modbus serial communications standard.
• Serial ASCII When selected, the Serial ASCII radio button indicates that you wish to use the ASCII mode of the Modbus serial communications standard.
• SA-85 (MB+) When selected, the SA-85 (MB+) radio button indicates that you wish to use the Modbus Plus communications protocol via a Modicon SA-85 card.
• Embedded TCP/IP When selected, the Embedded TCP/IP radio button indicates that you wish to use the Embedded TCP/IP protocol.
• Open Modbus TCP When selected, the Open Modbus TCP radio button indicates that you wish to use the Modicon Open Modbus/TCP specification to receive Modbus protocol over Ethernet TCP/IP.
Check this box to enable the squelching of background noise. By default, the Squelch Noise Present checkbox is not selected.
Allows you to select whether or not byte swapping should occur for long integer values.
By default, the Reverse Long Integer Byte checkbox is not selected.
Allows you to select whether or not byte swapping should occur for IEEE single byte values.
By default, the Reverse IEEE Single Byte checkbox is not selected.
Allows you to select whether or not byte swapping should occur for IEEE double byte values.
By default, the Reverse IEEE Double Byte checkbox is not selected.