Host Engineering Forum

General Category => Do-more CPUs and Do-more Designer Software => Topic started by: ryanastiefes on March 04, 2025, 02:22:04 PM

Title: Modbus IO Scanner
Post by: ryanastiefes on March 04, 2025, 02:22:04 PM

Has Read/Write Interval for Modbus IO Scanner always been a 16-Bit Unsigned?

Title: Re: Modbus IO Scanner
Post by: BobO on March 04, 2025, 03:44:48 PM

Quote from: ryanastiefes on March 04, 2025, 02:22:04 PM

Has Read/Write Interval for Modbus IO Scanner always been a 16-Bit Unsigned?

As far as I can remember.

Title: Re: Modbus IO Scanner
Post by: ryanastiefes on March 04, 2025, 04:10:47 PM

Got it. I thought I was able to extend it out further at one time, apparently I'm thinking of another brand of controller. Thank you sir!

Title: Re: Modbus IO Scanner
Post by: BobO on March 04, 2025, 04:37:03 PM

Quote from: ryanastiefes on March 04, 2025, 04:10:47 PM

Got it. I thought I was able to extend it out further at one time, apparently I'm thinking of another brand of controller. Thank you sir!

The Modbus instructions can go longer, but for the scanner we felt ~1 minute was plenty.

Title: Re: Modbus IO Scanner
Post by: Controls Guy on March 05, 2025, 12:52:55 PM

Or else enable/disable in ladder (either scanner or MxX)