Industry Online Support
Technical Forum
Navigation
Rating 
Thanks 11
| 6/16/2009 9:05 AM | |
Joined: 9/27/2006 Last visit: 5/31/2023 Posts: 12028 Rating:
|
Hello Navnag; Let's see if we can answer some of yoyr questions here. First, the attached document discusses how to setup a Y-link with different Siemens slaves, in the last pages. I also seem to remember that the I/O configuration of the slaves downstream of a Y-Link must not change during runtime, but unfortunmatelyI cannot find a confirmation of that right now. Maybe someone else can help us out. Unfortunately the "cheap" brick-type I/O slaves available from Siemens, ET 200L, ET 200B, cannot be setup on a Y-Link with analog signals, only digital signals (AC or DC); see the last pages of the attached pdf. And only the ET 200S supports the 1SI modules , unless you want to setup a CP 340/341 in a ET 200M rack for your serial communications. The ET 200M, by the way, cannot be used with a Y-Link, but rather it can be setup for redundancy with 2 IM 153-2 interface modules and an active backplane. That would change the price a bit (maybe not for better...). Maybe one solution to the price of the I/O would be to look at other manufacturer's offerings of Profibus I/Os. Some are definetly cheaper than Siemens; most have a very good reputation. Here are 3 links for different product lines, you can find more if you search on Profibus.com, Profibus, Products. Wago profibus I/O: http://www.wago.us/products/26801.htm Beckhoff Profibus I/O Phoenix Contacts Profibus I/O: http://www.phoenixcontact.com/global/news/18338_18340.htm Hope this helps,Daniel Chartier AttachmentY_LINK_E.pdf (350 Downloads) |
This contribution was helpful to
|
|
| 6/16/2009 8:25 PM | |
Joined: 7/2/2008 Last visit: 3/14/2023 Posts: 928 Rating:
|
Dear all, I highly doubt that ET200S can be hot swappable behind Y-Link (Directly). The point is thatInsert/Remove module interrupt is an acyclic event and then it's a property of DPV1. Check differences between DPV0,DPV1 and DPV2. Sadly, All DPV1 properties are disabled after Y-Link either you get your ET200M/ET200S fromStep7 HW catalog or through GSDfile. Please see the attached Pdf. The document that Mr. Daniel attached is for the old Y-Link. The statement in the second page (Supports system changes during operation on an S7-400H) is little vague. It definitely means that you can change either IM157 or the Y-Coupler while CPU is in RUN but not the DP slaves behind the Y-Coupler. I've also extracted page 49 of the previously attached document which states that DPV1 slaves CANNOT be operated on a Y-Link. It's little different in the new Y-Coupler (The manual can be downloaded here). The new Y-Coupler supportsDPV1 slaves BUT, (Extracted from manual) Slaves at the lower-level DP master system cannot be operated in DPV1 mode unless they have been integrated and configured with GSD rev. ≥ 5. The GSD must contain the following entries: ● Prm_Block_Structure_supp=1 ● PrmCmd_supp=1 ● Slave_Redundancy_supp=1STEP 7 checks these entries during configuration. If these entries are not found, the slave is then operated in DPV0 mode. AttachmentET200S Y Link1.pdf (292 Downloads) |
This contribution was helpful to
|
|
Follow us on