1766-RM001A-EN-P MicroLogix 1400 Programmable Controllers ...

610 Protocol ConfigurationDF1 Radio Modem System LimitationsThe following questions need to be answered in order to determine if youcan implement the new DF1 Radio Modem driver in your radio modemnetwork:1. Do all of the devices support DF1 Radio Modem protocol?In order to be configured with the DF1 Radio Modem driver, usingRSLogix 6.0 or higher, MicroLogix 1200 controllers must be at FRN 7or higher and MicroLogix 1500 controllers must be at FRN 8 orhigher.SLC 5/03, 5/04 or 5/05 processors must all be at FRN C/6 or higherin order to be configured with the DF1 Radio Modem driver usingRSLogix 500/RSLogix Micro version 5.50 or higher.All MicroLogix 1400 controllers support DF1 Radio Modem protocol.RSLogix 500/RSLogix Micro version 7.0 or higher is required toconfigure the MicroLogix 1400.Starting with Version 16.1, all Logix controllers can be configured forDF1 Radio Modem protocol.2. Does each node receive the radio transmissions of every other node,being both within radio transmission/reception range and on acommon receiving frequency (either via a “Simplex” radio mode orvia a single, common, full-duplex repeater)?If so, then go to question #3 to see if you can use the DF1 RadioModem driver to set up a peer-to-peer radio network. If not, thenyou may still be able to use the DF1 Radio Modem driver, byconfiguring intermediary nodes as Store & Forward nodes.3. Do the radio modems handle full-duplex data port buffering andradio transmission collision avoidance?If so, and the answer to #2 is yes as well, then you can take fulladvantage of the peer-to-peer message initiation capability in everynode (i.e., the ladder logic in any node can trigger a MSG instructionto any other node at any time). If not, then you may still be able touse the DF1 Radio Modem driver, but only if you limit MSGinstruction initiation to a single “master” node whose transmissioncan be received by every other node.Publication 1766-RM001A-EN-P - October 2008