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Yes, you can use Modbus Serial or Modbus Plus or Modbus TCP/IP to communicate to the HSBY controlers. The addressing between the primary and standby is offset and automatically switched on failover. For RS232 you have a problem, this is a point to point communications (master-slave) and not...

Most likely what they want you to understand is the data types that can be read and their format. Quantum and M340 with Unity both use IEC addressing but with some differences to accommodate legacy projects in Quantum. Email me at brian.cervi [at] .schneider-electric.com and I will send you some...

It is possible to import 984LL (Modsoft or Proworx NxT or Proworx 32) into a 984LL section in Concept. You can run this section in conjunction with the five (5) IEC languages. As for running 984LL in Unity... just wait until later this year...

Go to B&B Electronics for great information on theory and application of RS485. www.bb-elec.com

This item cannot be fully or properly addressed without knowing the system design and SIL level requirements. Redundant communications with proper diagnostics designed into the application may meet the SIL requirement. Such applications are likely best dealt with by a certified safety systems...

Schneider Electric has proven bridges to connect Modbus TCP/IP to Modbus serial (RS232 or RS485) devices. Schneider Modicon controllers provide Modbus TCP/IP,Modbus serial (RTU/ASCII 232/485 Host/Slave)and other protocols. Why not directly contact your local Schneider office or distributor for a...

If your wiring and device address are correct, then the problem is likely with your code. Use one or the other function blocks, my recommendation for Concept/Quantum is the MBP_MSTR function. Common error is in the config of routing register 1. It contains the slot number and first routing...

Both the Unity Quantum and M340 controllers support EtherNetIP connections. Currently an in-rack module is required but development is underway to make the connection a configuration choice rather than an additional module.

Since Concept V2.5 it has been a configuration option to "upload". That means the project must be compiled with this option to enable upload. If the option is not enabled in the Concept project in the controller, then the project cannot be uploaded. Serial cable is standard and the same for...

Fred, have you checked with Schneider Services at your local Schneider (Square D) office? Or call support at 1 800 468 5342 and explain your issue. There is still support for these products and the "old" Square D plc I/O can be used with the newest systems. If you do not have success, post...

Contact your local Schneider Services. There are several low cost Magelis displays that can replace your XBTH and XBTP models. The new STO/STU products are one possibility. If you cannot determine an office to call, email me at [email protected] and I will assist. In the US...

The Schneider Magelis HMI family supports Modbus Slave as either a Modbus RTU slave (serial Modbus RTU) or as a Modbus TCPIP slave (Ethernet). In either configuration, a HOST can write data to the HMI or read data from the HMI. The HMI can simultaneously be a master or peer device on another...

Don't know, but Modicon Quantum processors can integrate SQD racks on the remote IO Bus. Programming with Concept or Unity.

Regarding the Modicon M340 PLC and Modbus Plus. It is true that the M340 does not have a MBPlus connection on the controller but MBPlus can easily be achieved using the Proxy Module (TCSEGDB23F24FA). The M340 "side" of the proxy module is Ethernet (network). Proxy makes the M340 look and...

Is is true that the Modicon Compact is no longer in production (Obsolete is such a tacky word). However, some distributors in Canada and the USA still have stock. Schneider Services is also a good source for parts. In Canada and the USA there are migration paths and procedures that can move you...

The CF card used with the Magelis HMI for data storage (alarms, trending, recopies) can be purchased from Schneider. However, most commercially available CF cards will function. Do not purchase cheap knock offs. I have had success with SanDisk Ultra and recently used a 4GB 30MB/s card...

Crossovers depend upon what the devices are. DTE to DCE (Data Terminal Equipment to Data Communication Equipment) connections are 1:1. EG PC to Modem, PLC to MODEM. However, when connecting DTE to DTE you will likely require a crossover EG PLC to PC or HMI. However, with the wide interpretation...

Don't worry about compatibility between software and PLC controller firmware. Your problem is connecting to the controller from your PC. On the 113, there is a switch that says RTU/ASCII/MEM. It should be in RTU position. In that position, the MODBUS communications is RTU 9600 8E1. The port...

Mike, great to see your name pop up. Very good information. And then there are the slave devices that reply with 2 registers when you only asked to read the contents of one. These slave devices have the 4xxxx references arranged in areas, one of which is floating point. And, of course, FP...

Check the VJD help file in section 6.3.3.2. There is an indirect addressing example.