Emerson Bettis XTE3000 Installation, Operation And Maintenance Manual page 16

Section 7: Modbus I/O List
October 2022
NOTE:
1. Open Command, Close Command, Stop Command:
"Open" and "Close" commands are self-maintained.
If "Open command" is active and "Close command" is received, the movement is reversed and
"Open command" is cleared.
If "Close command" is active "Open command" is received, the movement is reversed and
"Close command" is cleared.
If "Stop Command" is received, "Open command" and "Close command" will be ignored.
When "Stop Command" return to 0, "Open command" and "Close command" can be carried out.
To clear "Open command" it's necessary to set "Stop Command" to ON and to set "Open command"
to OFF.
To clear "Close command" it's necessary to set "Stop Command" to ON and to set "Close command"
to OFF.
2. Open, Close, Stop, ESD, Positioner mode:
"Local Stop pressed," "Selector in OFF," "Selector in REMOTE" stops temporarily all commands;
when the local STOP is depressed, or the selector returns in REMOTE position, the previous command
is restored.
3. ESD/PST Command:
If the value is ON, an ESD/PST command is generated. When the signal returns to OFF, the ESD/PST
command is cleared. See Section 11.1 for details.
4. Positioner Mode:
"Positioner Mode" command is available only in modulating actuators.
If its value is ON, the positioner function is enabled, and the actuator will position according to the
content of position request register (Holding Register address 1).
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Installation, Operation and Maintenance Manual
VCIOM-15081-EN Rev. 7
Modbus I/O List