List of Contributions

RE: Micro800. Modbus RTU. How to communicate with custom command?

Posted By Micro Guy Apr 11, 2024 10:23:15 AM
Found In Egroup: Automation Control \ view thread

For custom commands, the TargetCfg.Addr value is not used (it is ignored). ------------------------------ Mark Tabler "Micro Guy" Principal Engineer Rockwell Automation ------------------------------

RE: Micro800. Modbus RTU. How to communicate with custom command?

Posted By Micro Guy Apr 11, 2024 10:05:58 AM
Found In Egroup: Automation Control \ view thread

You're welcome Ihor! To answer your question, you enter in the number of bytes to transmit into LocalCfg.ElementCnt prior to triggering the message instruction. Then, when the message instruction has completed, you can view the number of bytes received in LocalCfg.ElementCnt (it will have overwritten ...

RE: Micro800. Modbus RTU. How to communicate with custom command?

Posted By Micro Guy Apr 11, 2024 09:33:00 AM
Found In Egroup: Automation Control \ view thread

Hello Ihor, To send a Modbus RTU custom command with a Micro800 using the MSG_MODBUS instruction, enter in the Modbus function code into LocalCfg.Cmd, the length in bytes to send following the function code byte into LocalCfg.ElementCnt, and the bytes to transmit into LocalAddr (remembering that LocalAddr ...

RE: Micro800 PLC Expansion IO Communication Fault

Posted By Micro Guy Apr 09, 2024 07:49:28 AM
Found In Egroup: Automation Control \ view thread

Hello Thanujan, Are any of the outputs on the 2085-OW16 connected to inductive loads? If so, they should have noise suppressors installed on them. Lack of noise suppressors across inductive loads is the most common source of intermittent faults like this. ------------------------------ Mark Tabler ...

RE: #M800 - Exception Code 55 "Link Layer Time Out". What does that mean, exactly?

Posted By Micro Guy Apr 02, 2024 09:22:17 AM
Found In Egroup: Automation Control \ view thread

Hello Mark, The fact that the write data is getting to the device and yet the message instruction is erroring out with error code 55 tells me that the Micro800 is not properly receiving the reply. Assuming you are using RS-485, the reason may be that the response is coming back too fast! The RS-485 ...

Requesting CCW Micro800 Function Block Diagram Projects

Posted By Micro Guy Jan 24, 2024 03:13:00 PM
Found In Egroup: Automation Control \ view thread

Hey, Engage members, We are working to improve our CCW software! The Connected Components Workbench software development team is looking for sample Micro800 projects written in Function Block Diagram for use in upcoming FBD user interface improvements… and we'd like your help! Are you willing to ...

RE: DH485 Network Connection

Posted By Micro Guy Jan 23, 2024 10:16:21 AM
Found In Egroup: Legacy \ view thread

Hello Alhabbashi, You have run across a limitation of the 1747-UIC RS-485 port. It can be connected point-to-point to the SLC 5/03 channel 1 port either directly or through a 1747-AIC that is not connected on a network. If your intent is to connect your PC to the DH-485 network, then one possibility ...

RE: Downgrade Panelview 800 firmware

Posted By Micro Guy Jan 12, 2024 02:21:06 PM
Found In Egroup: Legacy \ view thread

Hi Crouch, I was able to communicate with an SLC 5/05 over Ethernet using the PanelView 800 8.011 firmware by configuring the terminal Ethernet protocol for Allen-Bradley MicroLogix CIP. Please give this a try. ------------------------------ MicroLogix Guy ------------------------------

RE: Micro1400 ModbusRTU Master problem

Posted By Micro Guy Jan 03, 2024 06:51:00 AM
Found In Egroup: Legacy \ view thread

Hi Liu, Your channel 0 screenshot shows that Control Line is configured for "No Handshaking (485 Network)", which means the port is configured for RS-485 instead of RS-232. To configure channel 0 for RS-232, like channel 2, change your Control Line setting to "No Handshaking". ------------------------------ ...

RE: Micro820 SERIALISOL with RFID card reader (Over RS485, VT100 Protocol) Data communication

Posted By Micro Guy Dec 13, 2023 09:31:00 AM
Found In Egroup: Automation Control \ view thread

Hello Utsav, VT100 is just simple ASCII protocol. You can find a Micro800 ASCII UDFB in the Sample Code Library. ------------------------------ MicroLogix Guy ------------------------------

RE: CCW 13.0 PanelView 800 Download Issues

Posted By Micro Guy Dec 13, 2023 07:15:00 AM
Found In Egroup: Automation Control \ view thread

Hello Andrew, I believe the solution to your issue is found in the latest version 22 release of Connected Components Workbench software. Recent versions of CCW implemented a large packet download to PanelView 800 terminals in order to improve download performance, however a VPN may not be able to pass ...

RE: Fault Code 0071h

Posted By Micro Guy Nov 13, 2023 07:45:00 AM
Found In Egroup: Legacy \ view thread

One of the recommended actions for a 0071h fault code in the MicroLogix 1500 Reference Manual is "Check for a noise problem and be sure proper grounding practices are used." A common cause of noise is relay output modules connected to inductive loads without noise suppression. Refer to the MicroLogix ...

RE: Retrieving the DataLog file from MicroLogix1400 over EtherNet using a CompactLogix controller

Posted By Micro Guy Jul 10, 2023 02:04:41 PM
Found In Egroup: Automation Control \ view thread

Unfortunately, the MicroLogix has no way to read its own datalog memory. If you try to send a message to the local IP address, you get an "Invalid internet address or host name" error, and the loopback IP address (127.0.0.1) is reserved for accessing socket services. ------------------------------ ...

RE: Retrieving the DataLog file from MicroLogix1400 over EtherNet using a CompactLogix controller

Posted By Micro Guy Jul 05, 2023 11:36:54 AM
Found In Egroup: Automation Control \ view thread

The number of elements in the CompactLogix MSG instruction has to match your specific MicroLogix 1400 datalog record configuration. In the Knowledgebase example, 55 is the number of bytes that will be read back and is the formatted string length. In this case we are reading 5 integer values and the Time ...

RE: Retrieving the DataLog file from MicroLogix1400 over EtherNet using a CompactLogix controller

Posted By Micro Guy Jul 05, 2023 08:19:58 AM
Found In Egroup: Automation Control \ view thread

If the CompactLogix MSG instruction completes done, then the MicroLogix 1400 should automatically clear that record from the queue. Have you verified that the CompactLogix message is completing without an error? ------------------------------ MicroLogix Guy ------------------------------

RE: Anyone fluent in DF1 and old PLC5 models?

Posted By Micro Guy Jan 27, 2023 10:07:00 AM
Found In Egroup: Legacy \ view thread

Hi Splash, Another possibility for the duplicate ACKs is a repeater in the radio system. Repeaters are used to extend the range of the radio signals, but sometimes the non-repeated packet gets through followed by the repeated packet, and the PLC has to ACK both packets (even if duplicate packet detection ...

RE: E300 and CCW compatibility

Posted By Micro Guy Nov 10, 2022 10:22:00 AM
Found In Egroup: Automation Control \ view thread

There are Micro800 UDFBs for the E300 posted in the Rockwell Automation Sample Code Library: Sample Code Library | Rockwell Automation ------------------------------ MicroLogix Guy ------------------------------

RE: Setting SNMP Read/Write Passwords on 1747-L552/C SLC-5/05 Series C Revision 10 1747_slc 3.46

Posted By Micro Guy Jun 27, 2022 07:30:00 AM
Found In Egroup: Legacy \ view thread

EDIT: linkified for convenience -FL Per RA Knowledgebase #QA50173, the default SNMP password for the SLC 5/05 cannot be changed. ------------------------------ MicroLogix Guy ------------------------------

RE: RSLOGIX 500

Posted By Micro Guy May 31, 2022 07:23:00 AM
Found In Egroup: Legacy \ view thread

Actually, I would like to (hopefully) clarify this. The Series B listing in RSLogix 500 is referring to the Operating System (OS) series, not the hardware series. Both hardware series B and hardware series C MicroLogix 1400 processors run series B OS firmware. In the processor status file, the OS series ...

RE: NEW: Connected Components Workbench™ v20.01 released

Posted By Micro Guy May 11, 2022 07:24:00 AM
Found In Egroup: Automation Control \ view thread

Yes, to coordinate with the new Micro850 L50E and Micro870 L70E controllers, which are being released with version 20 firmware. ------------------------------ MicroLogix Guy ------------------------------

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My Content

RE: Micro800. Modbus RTU. How to communicate with custom command?

RE: Micro800. Modbus RTU. How to communicate with custom command?

RE: Micro800. Modbus RTU. How to communicate with custom command?

RE: Micro800 PLC Expansion IO Communication Fault

RE: #M800 - Exception Code 55 "Link Layer Time Out". What does that mean, exactly?

Requesting CCW Micro800 Function Block Diagram Projects

RE: DH485 Network Connection

RE: Downgrade Panelview 800 firmware

RE: Micro1400 ModbusRTU Master problem

RE: Micro820 SERIALISOL with RFID card reader (Over RS485, VT100 Protocol) Data communication

RE: CCW 13.0 PanelView 800 Download Issues

RE: Fault Code 0071h

RE: Retrieving the DataLog file from MicroLogix1400 over EtherNet using a CompactLogix controller

RE: Retrieving the DataLog file from MicroLogix1400 over EtherNet using a CompactLogix controller

RE: Retrieving the DataLog file from MicroLogix1400 over EtherNet using a CompactLogix controller

RE: Anyone fluent in DF1 and old PLC5 models?

RE: E300 and CCW compatibility

RE: Setting SNMP Read/Write Passwords on 1747-L552/C SLC-5/05 Series C Revision 10 1747_slc 3.46

RE: RSLOGIX 500

RE: NEW: Connected Components Workbench™ v20.01 released