C-MORE EA1-TCL-M, Руководство пользователя по оборудованию

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6–6
Chapter 6: PLC Communications
6
® EA1-TCL-M Hardware User Manual, 1st Ed., 12/09
PLC Compatibility and Connection Charts (cont’d)
AutomationDirect CLICK PLC:
AutomationDirect’s practically free PLC, CLICK, can be used with RS-232 3-wire networks
or as a stand alone PLC.
C-more Micro-Graphic panels are an ideal partner for CLICK which:
• Is low cost
• Is easy to use
• Uses standard Modbus communication
• Is programmed by free CLICK programming software
• Has com ports that provide 5 VDC
• The maximum communication speed between a CLICK PLC and a
C-more Micro-Graphic panel is
38.4 Kbps.
Direct LOGIC PLCs RS-422A/RS-485A:
When using the RS-422A/RS-485A communications capabilities of the C-more Micro-Graphic
Serial Port (Port 2), the termination resistor is placed between the RXD– and RXD+ terminals
on the PLC side of the connection between the touch panel and PLC. The Termination Resistor
value is based on the characteristic impedance of the cable being used. To enable the built-in
120 Ohm Termination Resistor, jumper pin
13 (termination resistor) to pin 9 ( RXD+ ) on the
C-more 15-pin PLC communications port.
Allen-Bradley:
As stated in this chapter’s introduction, the panel also has the ability to communicate with
Allen-Bradley PLCs that support the Allen-Bradley DF1 and DH485 protocols. The chart for
the various Allen-Bradley PLCs includes recommended cables.
GE, Mitsubishi, Omron, Modicon and Siemens:
Other 3rd party PLCs can be used with the C-more Micro-Graphic panel. These PLCs are listed
in a chart and various wiring diagrams are shown to allow connectivity.