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Problems Using ET 200M Module with S7-300 PLC

Created by: nr123 at: 8/8/2012 9:53 AM (3 Replies)

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8/8/2012 9:53 AM	Rate (0)
nr123 Posts: 3 Rating: (0)	Hi all, I've recently aquired a S7-300 PLC (CPU313 313-1AD03-0AB0) in order to try teach myself how to program and run small, basic industrial test networks. The PLC came with two additional modules already installed on the back plane (DI16xDC24V and DO16xDC24V/0.5A). I am now having issues inattempting to install a third PROFIBUS module on the backplane, ET 200M (6ES7 153-2BA01-0XB0). When the ET 200M module is connected and switched on, the PLC switchesits red SF LED on and the orange STOP LED blinks on and off slowly. From the research I've done so far, I understand that this could be due to the fact that I havn't configured the hardware in the SIMATIC manager correctly.Numerous attempts to try add this module to the manager always result in the error, "A DP Slave can only be inserted in a PROFIBUS master system". Therefore, Iassume Ineed to add a PROFIBUSmasterto the system. Basically, my problem is I don't understand what to do in terms of adding a PROFIBUS master to the system. Could Iconfigure a laptop running SIMATIC manager as a PROFIBUS master for the network? For instance, Iread an OPC server might allow me to do this.If so, where can I find out how to do this?If not, will I need additional hardware to set up a PROFIBUS master? I spent a number of hours looking into this yesterday and I'm stillconfused so any help or directionyou could offer me would be greatly appreciated!
nr123 Posts: 3 Rating: (0)
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8/8/2012 10:12 AM	Rate (0)
UMENCHO Diamond Member Joined: 3/21/2006 Last visit: 9/10/2024 Posts: 10228 Rating: (1181)	Hello, The problem is that CPU doesn't have Profibus port in order to make it a Master. There is possibility (need extra hardware) to make PC profibus master and then to connect IM153-2 like a slave there. Take a look atHow do you configure a PC station as DP master for connecting to a DP slave for the SIMATIC NET OPC server with the SIMATIC NET PC software? Best regards, Hristo Mihalev

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8/8/2012 1:09 PM	Rate (0)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 9/10/2024 Posts: 12282 Rating: (2683)	nr123 ...I am now having issues inattempting to install a third PROFIBUS module on the backplane, ET 200M (6ES7 153-2BA01-0XB0). When the ET 200M module is connected and switched on, the PLC switchesits red SF LED on and the orange STOP LED blinks on and off slowly... Hello nr123; You cannot install an IM 153-2 module on the backplane connectors of themain rack (where the CPU is installed). The CPU will reject this module as not being compatible with the central rack. The ET 200M is part of a family of distributed I/O using Profibus DP to carry signals bteen the main rack and the remote I/O modules. Families of ET 200 distributed stations (ET 200M, ET 200S, ET 200X...)are described in the following Siemens brochure: SIMATIC ET 200 - Automation Technology - Siemens To make this work, you would need to install your CPU inits main rack with at least a power supply, and on a seperate rack install the IM 153-2 with its own power supply and at least one of the I/O modules you have. Then using a Profibus_DP connection you could configure andcommunicate at a distance with the I/O module(s) on the remote rack, But since the CPU you have does not hace a Profibus-DP interface you would need to add a CP 342-5 as a Profibus-DP master interface to connect with the slave rack. The following link will take you to a series of tutorials by Siemens on the S7-300 platform, covering most of the training required to learn the programming and configuration of these CPUs. You could find them helpful. Module D talks about industrial fieldbuses, Profibus-DP amongst them, and shows how to install Profibus-DP slaves in the HWConfig. https://www.automation.siemens.com/mcms/sce/en/advanced_training/training_material/download_training_material/Pages/Default.aspx Hope this helps, Daniel Chartier

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8/9/2012 4:19 PM	Rate (0)
nr123 Posts: 3 Rating: (0)	Thanks guys. This was exactly the advice I needed!
nr123 Posts: 3 Rating: (0)
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