33
Following are examples of answers:
1)
“03<STX>+01200<ETX>”
The controller with process ID number 03 says that its current setpoint is +12.00
mS.
2)
“01<STX>UE71022225<ETX>”
The controller with process ID number 01 says that it is a HI710222 model with
firmware release 2.5.
The minimum delay between the last received character and first character of the
answer is 15 ms.
When the controller answers to the ECR, TDR and TMR commands, the reading is sent
as ASCII string followed by a character indicating the control and alarm status of the
controller. This character can assume the following values:
• “A”, control and alarm are ON;
• “B”, control and alarm are ON, and need update controller setup
(GET commands);
• “C”, control is ON and alarm is OFF;
• “D”, control is ON and alarm is OFF, and need update controller setup
(GET commands);
• “N”, control and alarm are OFF;
• “M”, control and alarm are OFF, and need update controller setup
(GET commands);
For example, a possible answer to the TMR command is:
“03<STX>10.7C<ETX>”
meaning that the current temperature reading is 10.7°C, the control action is active, no
alarm condition is present and controller setup is updated on PC
.
“03<STX>10.7D<ETX>”
meaning that the current temperature reading is 10.7°C, the control action is active,
no alarm condition is present and controller setup is modified (must update controller
setup for PC - GET command for setup items).
