Re: EPICS drivers for PLCs?

[Ned Arnold <nda@aps.anl.gov>]

We have device support for the very inexpensive Koyo 205 series 
marketed by automationdirect.com (used to be PLC Direct).  We are 
currently replacing large amounts of relay-based interlocks with 
these PLC's. The protocol is DirectNet over RS232/422.

The current support is implemented over Bitbus, but there are near
term plans to move it to Message Passing Facility.

Contact anj@aps.anl.gov for more info.


	Ned
	

> 
> 	We are currently evaluating various types of PLCs for use at the CLS. 
> We would like to know which types have EPICS drivers available.  I
> currently have a driver for Allen Bradley using df1 protocol over a
> serial line.  Though I am unsure if it is a general driver or only
> supports specific modules.  I have been unsuccessful in locating
> anything for MODICON (Modbus or Modbus+) or Siemens hardware. 
> Information about any of these three dirvers would be welcome.
> 
> 
> -- 
> Tony Wilson                                  e-mail: tony@cls.usask.ca
> Canadian Light Source		              Phone: (306) 966-8529
> University of Saskatchewan                      FAX: (306) 966-6058
> 107 North Rd.                            Home phone: (306) 244-1431
> Saskatoon
> Saskatchewan, Canada
> S7N 5C6