skjomcs

Hi I have a CP1W-CIF41 ethernet board in an Omron PLC. I connected to the board to change its IP address via its default IP and lost connection before the operation got completed. I now cannot connect to the board via the default IP address or the new IP. Have tried changing cables, switches etc but cannot connect . Is there a way to reset these so i will know it is back to its default IP address of 192.168.250.1

H i i have a CP1W Ethernet IO module on an omron PLC. The LED "ERR" light is flashing. The PLC is connected to a PC constantly via this Ethernet board Connecting via the web interface i have seen that under the status view of the web interface the Address Disagreement parameter is abnormal. Looking at he manual it suggests the following: "Make sure that the node number and the last byte of the IP address are the same and then set other host ID's to 0. Change the address conversion method" if the PLC ip address is 172.25.0.94 does this mean that the fins node address should be set to 94?

okay thanks when you say correct interface what do you mean? i was thinking of installing wireshark on the server and watching the communication or also transferring a file to a pc on the vlan to make sure something other than a ping works. found this online: www.opcdatahub.com/Download/PDF_Release/OPC%20DataHub%20-%20Tunnelling.pdf "But networking OPC is challenging. The networking protocol for OPC is DCOM, which was not designed for industrial real-time data transfer. DCOM is difficult to configure, responds poorly to network breaks, and has serious security flaws. Using DCOM between different LANs, such as connecting between manufacturing and corporate LANs, is sometimes impossible to configure"

hi came across a network which used Kepware to collect information from a number of PLC's. some PLC's reside on the network 10.x.x.x these communicate okay with the kepware server which resides on 10.0.0.1 There are then a number of switches which were sitting on a L2 switch on the 192.x.x.x network- these could communicate with the server on 10.0.0.1 when an alternate ip in the 192.x.x.x range was added to the server- however it was noticed that the traffic through the network caused an issued with the PLC, the local ethernet switch was receiving a lot of broadcast traffic from all the 10.x.x.x devices (some were business networked PC's.) We substituted the L2 switch for a L3 switch and created two VLANS on the L3switch , the server was connected to vlan 1 (10.x.x.x vlan), the plc's were connected to vlan 20 (192.x.x.x) and inter vlan routing established on the Layer 3 switch. The issue with the PLC was resolved (it was sending go/nogo signal to device downstream) the server (now only has a 10.x.x.x ) address can ping the PLCS on the other vlan (192.x.x.x), however the Kepware software cannot access the tags on the PLC it needs to read. Can OPC be routed like this? or can someone point me in the correct direction. Thanks

Hi attached is a piece of code using RSlogix 500. Basically want to turn on an output for 20ms every 200ms. The code works fine. However i wanted to write the same code for a Micro830 PLC using connected components workbench, but there does not seem to be any timer timing bit for the TON function. Anyone have any experience using these plc's and timers and have suggestions?

Thanks for the quick reply and suggestion

----¦SW1¦--------------------------¦Timer1 Done bit NC¦-------------------¦Timer1(TON)¦-------- ¦parallel rung¦------------------------------------------------------------------¦parallel rung¦ ¦Timer1 TT bit¦---------------------------------------------------------------¦Timer2(TON)¦-------- ----¦timer2 TT bit¦------------------------------¦OP1(trig camera)¦-------- ----¦IP1 (cam res)¦---------------------------¦MOVE Timer 1 ACC to N1¦----- ----¦N1 greater than N2¦-----------------------¦MOVE N1 to N2¦------------ Note: micrologix 1200 rslogix500 timer 1: preset= 200ms timer 2 preset=20ms Trying to set up the following: When a switch closes (SW1) want to continually trigger a cognex insight camera every 200ms. I.E as long as switch is closed a trigger is sent every 200ms. the trigger sent is a pulse of duration 20ms. I am then trying to monitor how long after the trigger is sent does the camera system return its result and what is the max time taken over a number of triggers. the above is trying to do this by turning on timer 1 for 200ms, turning on timer 2 for a 20 ms pulse. I then wait for the camera result (IP1), when the result arrives i move the timer 1 accumulator value to an integer. I then compare this value to the highest cycle time taken and if it is higher than a previous result i move it into integer N2. What im trying to achieve is that when i turn the switch off, the value in N2 shows the longest time it took for the camera system to return a result over approx 10,000 triggers (or whenever the switch is opened again). im not sure how i set up is correct however and would like any pointers. is it possible to use the move function like this to move a timer accumulator or is it a very inaccurate way of capturing the cycle time?

Hi we have a limit switch with the following connections available on it: N.O N.C Common The switch states that its NPN, but there's no other info on it We would like to switch a relay coil but am wondering what to connect to what, usually the A2 of the relay goes to ground and the A1 is connected to the output of the sensor but that is for PNP i think. Im wondering what to connect to what to switch the relay? Anyone have any ideas Thanks

i am trying to design a network where there are 24 microscan hawk barcose readers that are transmitting their decoded strings to a single windows xp pc. A software program collects the read strings on the pc. i.e. the 24 devices read the seperate barcodes potemtially at the same time and transmit the read strings (24 numeric digit string) to the pc. (350 reads a minute) My first thoughts would be connect the devices to a switch then connect the switch directly to the PC. the devices would be arranged in a star pattern to the switch, with the single connection from switch back to the pc. however would there be a potential bottleneck going into the PC? would the pc cope wit the data without dropping the strings? would it be better to use a few nic's to distrube the load? Any suggestions on how to design this are welcome Thanks

how does ics work, the pc connects to the internet but wouldnt the plc & laptop need to be set to dhcp? thanks

hi, we have a pc connected to a switch which is on our network with an ip something like 10.0.1.234 (there is remote access to the pc), we then have a laptop that we need to connect to a plc. the laptop needs to be on our network with an ip like 10.0.1.233 as it is also needed to allow remote assistance in, however it needs to connect to a plc which has a different ip something like 195.234...., the ip and subnet of the plc are fixed and canot be changed. anyway the laptop has only one lan and we're trying to figure out how to connect to the plc over ethernet yet also have the laptop on our network with remote assistance. Ideally the pc, laptop, plc should all see each other and connect to the switch with remote access to the pc & laptop, but the plc has the oddball ip that cannot be changed. Anyone have any sugestions? the main pc has multiple nic, so i though if i connected the pcs first nic to one lan, then connected the plc & laptop to the switch and connected the switch back to the second nic on the main pc maybe bridging the connections or something would work, so that the user could remote into the main pc then gain access to the laptop from this pc & then the plc, however i dont no does that make sense. thanks

Thanks for the comments

okay thanks

added the fle in PDF, if anyone could take a look Thanks ML1100_INSPECTIONSYSTEM.pdf

anybody?