DirectLOGIC PLCs Password Protection
NOTE: DirectLOGIC PLCs support multi-level password protection of the ladder program. This allows
password protection while not locking the communication port to an operator interface. The multilevel
password can be invoked by creating a password with an upper case "A" followed by any variation of seven
numeric characters (e.g. A1234567). Please refer to the specific PLC user manual for further details.
PLC Compatibility and Connection Charts
The following pages include charts that list the possible connections available between several
brands of PLC’s and the C-more 6” Micro-Graphic panel. AutomationDirect PLC’s have the
ability to communicate and provide power to the panel using Port1 (RS-232). Port2 is a 15-pin
D-sub communication port that supports RS-232, RS-485 and RS-422. An external 1 Amp @
12-24 VDC external power source is required when using Port2.
Note: Recommended DC power supply to power the C-more Micro-Graphic Panel, AutomationDirect Part
No. PSP24-024S or PSP24-024C.
The charts include the various PLC protocols that can be used with each combination of PLC
port and panel port.
The charts list the recommended cables and/or manufactured devices that can be used to make
up the communications link, and also refers to wiring diagrams that can be used to construct
cables for connecting the PLC’s port to the panel’s port. The constructed cables are referred to
as Diagram 1 through 13 and start on page 6-26.
Following the charts is a list of cables that can be purchased, including their wiring diagrams,
and also wiring diagrams that are referenced from the charts that can be used to construct the
referenced cables.
AutomationDirect CLICK PLC:
AutomationDirect’s practically free PLC, CLICK, can be used with RS-232 2-wire networks.
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.
Note: Only one C-more Micro-Graphic panel can be powered by an AutomationDirect PLC. If connecting
C-more Micro-Graphic panels to more than one port on and AutomationDirect PLC, the additional panel
must use an external power supply.
6–6
Chapter 6: PLC Communications
6
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