Rmiller
Member
I am using a 260 for the master and 06's and 250's for slaves and use MDS Transnet 900's for the radio communication. This was working fine but as the network expanded (up to 29 remotes currently) there are sites that will not communicate even though the radio signal strength is very strong and in direct line of site. Also there is a repeater site with a plc that will not communicate but other remotes using this repeater communicate just fine.
There does not seem to be any good reason for this loss of communication as far as I can tell but about 8 sites total are effected. It just seems like it could have something to do with the master program. I have changed parts to eliminate bad equip and have double checked radio and plc programming.
In the master after every RX and WX I use a set cxxx relay command to prevent simultaneous RX or WX at the last rung there is a reset command that resets all the previous c relays. I have started some dialogue with AD tech support to check my master program.
I did solve a problem earlier by turning the buffer on in the master radio which smoothed out the error rate.
Communication setting is Modbus 38400 8N1
Also using insite6 (radio diagnostic software) I have determined that radio signal strength is probably ok.
Without going into a lot more detail I was hoping someone could give me some idea's or could explain how the radio's communicate which could lead to more understanding of the system.
There does not seem to be any good reason for this loss of communication as far as I can tell but about 8 sites total are effected. It just seems like it could have something to do with the master program. I have changed parts to eliminate bad equip and have double checked radio and plc programming.
In the master after every RX and WX I use a set cxxx relay command to prevent simultaneous RX or WX at the last rung there is a reset command that resets all the previous c relays. I have started some dialogue with AD tech support to check my master program.
I did solve a problem earlier by turning the buffer on in the master radio which smoothed out the error rate.
Communication setting is Modbus 38400 8N1
Also using insite6 (radio diagnostic software) I have determined that radio signal strength is probably ok.
Without going into a lot more detail I was hoping someone could give me some idea's or could explain how the radio's communicate which could lead to more understanding of the system.