adccommunitymod (AutomationDirect) asked a question.
Sensor Pulse MSP DRIVER
Created Date: April 26,2001
Created By: tweedy
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I'm using the MSP-TC modules with a 250 and using the supplied driver have been able to successfully operate 4 modules simultaneously. I need to do 8 modules and have not been able to achieve that level. I 've tried different scan times to no avail. Any of you guys had experience with these modules yet? Been able to do more than 4 modules?
Created Date: April 26,2001
Created by: tweedy
I'm using the MSP-TC modules with a 250 and using the supplied driver have been able to successfully operate 4 modules simultaneously. I need to do 8 modules and have not been able to achieve that level. I 've tried different scan times to no avail.
Any of you guys had experience with these modules yet? Been able to do more than 4 modules?
Created Date: April 30,2001
Created by: Tom Jenkins
I can't help you with Sensor Pulse, but I 've found that when you get more than one or two channels it is more cost effective to go with analog modules if they are available. The 205 has a F2-04THM for thermocouple inputs in the catalog at $289. This might be worth considering.
Created Date: May 14,2001
Created by: tweedy
Well I 've educated myself about the SENSORPULSE modules now. Seems you have to program the modules themselves with a scan time equal to that of the PLC's software interrupt scan time. I have 8 modules feeding a D2-32ND3 module and set at 40 mSec providing me with adequate update time up the temperatures.
We are using these modules since they equal the isolation provided by 5B modules and are $80 less expensive than the 5B (per channel). Since we use a high channel count for temperatures (up to 16)I don't have to worry about populating a rack with 4 analog modules. Add in a CPU and a H2-ECOM for each of our fixtures and you end up with 3 slots left for other I/O (in a D2-09X rack).
I can't comment on the durability of these modules yet but if you need isolation (we connect directly to 240VAC 50/60 Hz lines on a brush housing)these modules are up to the task. I guess I'm giving SENSORPULSE a plug here. If anyone would like the code for more than 2 points (SENSORPULSE provides software drivers for 2 points) I'd be happy to save you some typing time and email you the code.