YOKOGAWA UP55A - Chapter 12 Contact InputOutput Functions; Setting Contact Input Function

12-1
IM 05P02C41-01EN
Contact Input/Output Functions
12
12.1 SettingContactInputFunction
12.1.1 SettingContactInputFunction
Description
The contact input function works by setting the contact input number (I relay) to functions
such as the operation mode.
Thisexplanationassumesthatthecontacttypeisenergized.(Thefunctionisexecuted
when the contact is turned on)
If the power is switched from off to on in the DI on state, the contact state is changed
from off to on.
SwitchtoPRG(Startofprogramoperation)
The mode can be switched to PROG (start of program operation) using contact input.
(Switch by the rising edge)
Contact status Operation Remark
OFF→ON Switch to PROG (start of program operation) –
ON→OFF Maintains the current operation status –
SwitchtoRST(Stopofprogramoperation)
The mode can be switched to RESET (stop of program operation) using contact input.
(Switch by the rising edge)
Contact status Operation Remark
OFF→ON Switch to RESET (stop of program operation) –
ON→OFF Maintains the current operation status –
SwitchtoLOC(LSP)(Startoflocal-modeoperation)
The mode can be switched to LOCAL(LSP) (start of local-mode operation) using contact
input. (Switch by the rising edge)
Contact status Operation Remark
OFF→ON Switch to LOCAL(LSP) (start of local-mode operation) –
ON→OFF Maintains the current operation status –
SwitchtoREM(Startofremote-modeoperation)
The mode can be switched to REMOTE (start of remote-mode operation) using contact
input. (Switch by the rising edge)
Contact status Operation Remark
OFF→ON Switch to REMOTE (start of remote-mode operation) –
ON→OFF Maintains the current operation status –
PROG/RESETSwitch(P/R)
PROG/RESET mode can be switched using contact input. (Switch by the rising edge and
the falling edge)
Contact status Operation Remark
OFF→ON PROG –
ON→OFF RESET –
Chapter12ContactInput/OutputFunctions