phuz
Member
I'm working with a customer these next few days troubleshooting a bunch of Wonderware issues. There are numerous comm issues, unused tags, false alarms, etc. They are using both DASMBSerial and DASABCIP drivers to talk to a wide variety of controllers. The MBSerial is used to communicate with a bunch of Eurotherm temperature controllers. Someone had setup a bunch of alarm tags that look at each device with the item reference: $SYS$Status. If I watch the alarm log, this tag will change state every few minutes. Similarly, the SMC log shows "PLC poll message timed out on port COM9, revoking message" and then it immediately comes back.
PC is Windows XP. WW is 10.1. DASABCIP is v4.0 (which I am upgrading to 5). DASMBSerial is v2.
I haven't used the DASMBSerial driver before so I am looking for some guidance as to what these intermittent drop-outs could be from.
PC is Windows XP. WW is 10.1. DASABCIP is v4.0 (which I am upgrading to 5). DASMBSerial is v2.
I haven't used the DASMBSerial driver before so I am looking for some guidance as to what these intermittent drop-outs could be from.