Search the Community

My project is converting a Quatum Modicon to a Control Logix. We took the Modicon Logic ran it thru a Rockwell converter and created the Control Logix Logic. This was nothing complicated but a large file. In Modicon you have a Memory retentive bit -- (M). This converted to a Latch (OTL) in the Control Logix, we decided to place a coil OTE in Parallel with the Latch so we could unlatch on the rung going false. The memory retentive coil is there to hold memory on power cycle if it ever happened. So.... The question is Unlatch below The latch, or above Consider left a representive of converted logic in the AB. Logic a bit more complicated. A B C lL. U --||--|||--|/|--(OTL)--(OTE). L |. . --||-----|. U. L ----||--------------------(OTU)

Hi, First time posting on here, but been a reader for a while. I have an issue with a Mitsubishi setup and I really need to resolve this ASAP. The system is based around a hot standby CPU (Q12PRH) on 6 slot backplates with a CC Link (QJ61BT11N) and Modbus (QJ71MB91). Connected to these racks is an ST Lite CC Link head station (STL-BT1) with 10 output cards (DO8) and 14 input cards (DI8). The CC Link has been set up in GX Works 2 and I don't have any ERR lights. What I do have, and don't want, is a flashing I/O LED on the ST Lite head which I have been reliably informed means the device hasn't been initialised. I have tried to do this using the X78, X79, Y78 and Y79 commands as the ST Lite head is set to occupy 4 slots, device ID is set to 1. Due to the Q CPU being a hot standby GXW 2 will not let me specify the start IO numbers, which would typically be x1000, y1000 based on their examples. I have therefore assumed it is starting at X0 and Y0, hence the X78, X79, Y78 and Y79 bits for setting the station. I have also tried using X1078, X1079, Y1078 and Y1079 as in the examples assuming it had auto addressed the start at 1000 and not 0000. Any help will be appreciated, Cheers.

I want to communicate between two cc link master module placed in two separate panels. could any one please tell me the instruction used?

File Name: CLKSS 1.0 File Submitter: Jay Anthony File Submitted: 20 Nov 2014 File Category: Utilities Controller Link Software for Controller Link PCAT Board. Runs in DOS Click here to download this file

Hello, I'm trying to convert time into seconds using the SECOND function. I use Word(signed) array 0..2 but get an error message saying "wrong input data type". What data type do I need? Thank you, Jurgen

Dear all, I need some help with programming time in concept 2.6 in FBD. I use momentum PLC 171 CCC 980 30-IEC I would like to program 24Hours Clock with day, week and year. Can someone help me with this please. Regards Sam

Trying to add points to a QLC link from WDPF to SLC5/04, incorporating a 1770-KF2 DH+ interface module. This link has been in place for years, incorporating only DCS reads (both digital and analog). We recently added several more DCS reads successfully, but cannot seem to get digital or analog DCS writes to be seen by the registers in the SLC5/04 data table. Could this be a limitation by the 1770-KF2 module, or is there a more probable reason? SLC5/04 DH+---------1770-KF2---------QLC Could Duplex settings on the 1770-KF2 module have a bearing on this dysfunction? Successful DCS analog reads PT101, N9:2, A0000 PT102, N9:3, A0002 DP103, N9:4, A0004 Unsuccessful DCS analog writes PV101, N9:18, A0500 PV102, N9:19, A0502 PV103, N9:20, A0504 Any insight would be greatly appreciated. Thanks.

I would like to combine two existing machines with CC-Link. Each machine has a QJ61BT11N set up as its Master Station. The larger machine has 26 remote I/O and 4 remote devices. The smaller machine has 1 remote device (see the attachment). Each are already programmed and running. The larger machine has HMIs that I would like add screens to in order to control the smaller machine as well. The smaller machine would basically just need to send and receive a handful of signals... start, stop, manual, origin, e-stop, fire specific outputs, etc. What would be the best way(s) or simplest way(s) to connect and communicate between these machines? I am open to any advice and ideas. Thank you Machine_Addition_Via_CCLINK.bmp

Hello, can someone recommend HMI's which can be connected to my cc-link network? or is it better to use a PLC on the cc-link network and attach the HMI to the PLC? I just find the GT16 very expensive and I believe they need CC-link IE? Thanks you.

Good day pals! Can I ask something about the CC-Link Network? I have a concern regarding cross-communicating two CC-Link Masters using MC Works Master PC. Can you guys help me with the system architecture? Thank you very much. Your help will be greatly appreciated pals. Thanks a lot.