The Allen Bradley DF1 serial simulator, MODBUS RTU and
MODBUS ASCII serial simulators have been updated to allow multiple instances to execute
concurrently. Thanks to Honeywell for financially supporting the free
simulators.
Saturday, June 23, 2018
Friday, June 8, 2018
Monday, June 4, 2018
HMI update 06/04/2018
- The HMI AB Logix driver supported default string sizes (82 characters) since the driver was released. Today we released support for string sizes from 1 to 400 characters.
Sunday, May 13, 2018
HMI update 05/13/2018
- Added the “Edit field” graphic element to the website.
- We are considering creating a configurable interface to edit recipes at runtime. Contact support if you have any suggestions or comments.
Thursday, April 26, 2018
Software update 04/26/2018
- Added the bar code graphic element to the website.
- Corrected an issue with the pipe tool editor.
- Added a few more commands to the DF1 slave simulator.
- Added a “fixed” position property to the website graphic elements. The default position value is “absolute”.
Thursday, April 19, 2018
HMI update 04/19/2018
The analog and digital points can now be configured for a secondary data source.
Example:
A PLC has a MODBUS TCP (Ethernet) connection and also a MODBUS RTU (RS-232, serial) connection.
A primary port (A) is configured for the TCP connection and a secondary port (B) is configured for the RTU connection.
Points (PP) are created using the primary port (A) as a source.
Points (SP) are created using the secondary port (B) as a source.
All the primary points (PP) are configured to access the appropriate secondary point (SP).
Graphics, logging, alarms are all configured for the primary points (PP).
The secondary points (SP) do not process alarms and should not be configured for other access.
The secondary points (SP) are only used in the primary point (PP) configuration.
Should the primary port (A) experience a communication failure the data collected by the secondary points (SP) is used as the data for the primary points (PP) until the primary port (A) communication failure is corrected.
Example:
A PLC has a MODBUS TCP (Ethernet) connection and also a MODBUS RTU (RS-232, serial) connection.
A primary port (A) is configured for the TCP connection and a secondary port (B) is configured for the RTU connection.
Points (PP) are created using the primary port (A) as a source.
Points (SP) are created using the secondary port (B) as a source.
All the primary points (PP) are configured to access the appropriate secondary point (SP).
Graphics, logging, alarms are all configured for the primary points (PP).
The secondary points (SP) do not process alarms and should not be configured for other access.
The secondary points (SP) are only used in the primary point (PP) configuration.
Should the primary port (A) experience a communication failure the data collected by the secondary points (SP) is used as the data for the primary points (PP) until the primary port (A) communication failure is corrected.
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