PeterRichter

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About PeterRichter

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  • Birthday 10/03/64

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  • Website URL http://www.shaggyspahire.com.au
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  1. How to implement emergency stop and seq. actions

    Absolutely - must be hard wired - that goes for just about any code for any application you would encounter. The Estop must be wired in such a way as to remove power ( not just control signal) to any device The program should also be written so that if the E-Stop is released (power back on) that nothing should move until a button or switch has been operated by someone. This info should be taken as a guide only - you should look up the relevant code for the device you are working on. Peter
  2. Interrupt And Dm6628

    I know that on syswin - you need to change to data editor as opposed to program editor to change these settings - I do it all the time there must be a relative thingy in CX
  3. Interrupt And Counter Mode

    IR00003 means input 000.03 (that's the one you want) IR003 means the range of inputs 003.00 to 003.11 Peter
  4. Where Is The Signal Of Dmxxxx Come From

    If you havent got it yet - use the MOV(21) function You can move in hex numbers (preceeed number with #) or move the contents of another address into there. or you can use it to store the result of any mathmatical function - ADD MUL DIV etc the funtion for example can add the contents of DM0001 and DM0003 and put the result in DM0004 look up the reference for the functions when you call them up Peter
  5. CPM1a via modem

    Well, I finally got it. You're all going to think I'm a @#$% idiot. I had been leaving the sheild wire for the PLC - modem cable off at one end. This is because, a lot of sheilding applications I have come across don't need the sheild on at both ends - and a lot require that you only connect one end. I fact even most of the diagrams I saw of PLC - modem cables only have it on one end. I have even read horror stories of people burning things out by having sheild connected at both ends when there is a potential difference between the two earth references. Anyhow, I connected the sheilds together and hit "connect" again, not expecting anything to happen, and up she fired! That was with some pretty way off coms settings too. It seems that some of those settings arent that critical. Thankyou all that offered help Regards Peter
  6. CPM1a via modem

    Thanks I've read that application note before, but I'll have another go at it and just pretend that my CPM1a is the same as the one in the note. I noticed this time that there are two different places to select the flow control. I was just setting both of them to none. Maybe I should be using flow control on the first window to actually talk between the PC and the modem as it is being set up. (maybe the setting weren't actually going into the modem properly) Does anyone know if - even if i use no flow control on the PLC end, whether I should still use hardware flow controll on the local (PC) end. Is that side of the communications completelty irrelevant to what happens down the other end? I've been using a cable which only connects the tx and rx and gnd wires between the PLC and modem - but I'll give it a go with the flow control wires connected as well even though flow control is turned off. My programming cable that connects from my PC to the PLC uses only the two signal wires. Ive got a PSTN emulator on the way. That should make experimentation a bit easier. ( I was actually trampling my own children, racing backwards and forwards to use next door's phone line!) I'll let you all know what I eventually come up with - Maybe I'll even publish my own technical note to give to Omron and Sixnet In the meantime - Any suggestions are welcome Peter
  7. CPM1a via modem

    Sorry that Init string I was talking about was in the setup for the sixnet modem - "User defined AT string" should I be putting something there? or is that just for dialling out? Peter
  8. CPM1a via modem

    In the Syswin communications setup there is a place to put an initialisation string - Do I need to put something in there? Peter
  9. CPM1a via modem

    Thanks for the response Jay. I am already using pin 9 as the signal ground on the PLC end. It is connected to pin 5 which is gnd on the modem (9 pin plug) Peter
  10. CPM1a via modem

    Hi I am trying to set up remote acces to a Omron CPM1a PLC (with CPM1a CIF01 rs232 adapter) and just don't seem to be able to get it. I'm using a sixnet VT-1 modem. I have exhausted the help from sixnet and the local omron dealer. I want to access it from my computer at home. I dont need the remote modem to dial out. I am using Syswin as the connection software. I have used the sixnet general PLC setting template and changed the protocol to the default in the PLC (9600 baud 7 bit even parity 2 stop bits). I was originally trying to use the built in modem in my PC and laptop, and could get some sort of communications between the modems and then a fault message saying "no carrier". I read that these type of modems often don't work in this situation (especially 11 bit), so i tried and old external modem (acer 56 surf) and seem to have gotten one step further. The message I get now is "no response from PLC". I think I've got the right settings in the remote modem but I'm not sure about setting up the modem and coms port on the local computer. The lead I am connecting between the modem and the PLC has pin2 - pin 3, pin 3 to pin2 sig gnd to sig gnd. I have pins 4 and 5( rts, cts) bridged on the PLC end and pins 7 and 8 (rts cts) and 6 and 4 (dsr, dtr)bridged on the modem end. I am not sure if pin 1(dcs) should also be bridged in with these as well. I have flow control turned off on the PLC modem. Should I have flow control turned off on the local end? WHat about DTR control? Am I better of setting everything to the standard 8 bit, no parity, 1 stop bit? Has anyone actually done this set up or can anyone offer any advice. The sixnet application notes only cover two particular types of Omron PLC - not the CPM1a. I've been at it for weeks. The omron dealer says that they offer an "omron" modem - but it is just an office modem that they have put the settings in. I would much rather use a proper industrial modem. Thanks in advance to anyone that can help Peter Richter Richter Process Control Redcliffe, Qld Australia richter process control@ optusnet.com.au
  11. smart relay cables

    Thankyou Criss and Ahmad for your answers Peter
  12. smart relay cables

    Giddaye, My name's Peter - I have just joined although I've browsed this site many a time. I mainly design and built controllers for elevators and and waste trucks, compactors etc and anything that moves with hydraulics I'm just wondering if anyone knows if you can use the same cable to connect from a computer to a Omron ZEN smart relay and for the IDEC smat relay (FL1B, C) I have the ZEN one and someone has asked me to work on an IDEC. Thanks Peter Richter Richter Process Control Australia