17
IM 01B08B02-01EN
Monitoring and Control of
Regular Operations
Monitoring and Control of Regular Operations (Operation Display)
Table 5.2
No. in
Figure
Name Description
(14) Engineering units Engineering units (UNIT) are displayed in a maximum of seven digits.
(15) PV bar scale The PV bar scale is displayed divided into a maximum of 10 segments (10% segments).
(16)
0% value of scale, 100%
value of scale
0% value of scale (SCL) and 100% value of scale (SCH) are displayed in engineering units in
a digital value of five significant digits (seven digits including a sign and decimal point).
(17)
Alarm generation display,
Control status display
Alarm and control statuses are displayed in abbreviations. These vary according to
controller mode in the multi-function mode; or according to the control module in the
programmable mode. See Tables 5.3 to 5.5.
(18)
P-register display
When this display is enabled, P register is displayed on the LOOP 1 and LOOP 2
Displays individually. This display is available in the programmable mode.
(19)
Operation status display
The controller operation status is displayed.
Display Description
Display
Priority Order
[POWER DOWN] Power down is being detected. (1)
[H.MAN] Hard manual selector switch has been activated. (2)
(No indication) The instrument is operating.
(3)
[STOP] Operation stopped (such as while setting a
function on the Engineering Display, etc.)
[TEST1]
Test run mode 1 (only in the programmable mode)
[TEST2]
Test run mode 2 (only in the programmable mode)
Simulation program is being executed
(20)
Cascade setting input
value
When the instrument is used in the cascade mode, a cascade setting input value is
displayed in engineering units in a digital value of five significant digits (seven digits
including a sign and decimal point). No value is displayed in the programmable mode.
(21)
key function display
The key function is displayed. The key function display is different in the multi-
function mode and the programmable mode.
1) Multi-function mode
The key function is set using the PF key function selection parameter [PFKEY].
When the STC mode selection is “not OFF” and the “ key has been set to STC”,
the function display becomes [STC]. In other cases, nothing is displayed.
2) Programmable mode
The key function can be defined in user programs.
The function display becomes [PF] in the programmable mode.
(22)
Key LOCK status display
The key LOCK status is displayed.
Display Description
[ALLK]
, , and keys, SV increase and decrease ( , ) keys, MV
increase and decrease ( , ) keys, and key are disabled.
[MDLK]
, , and keys are disabled.
[SVLK]
SV increase and decrease (
, ) keys are disabled.
[MVLK]
MV increase and decrease (
, ) keys are disabled.
Table 5.3 Alarm Display and Control Status Display in the YS1500/YS1700 Multi-function Mode
Controller Mode
Display Item
Single Loop Cascade Selector
Alarm generation display (Note 1)
SYS-ALM
STC-ALM
ALARM-1
SYS-ALM
STC-ALM
ALARM-1
ALARM-2
SYS-ALM
STC-ALM
ALARM-1
ALARM-2
Control status display (Note 2)
CAS
SPC, DDC
BUA, BUM
CAS
SPC, DDC
BUA, BUM
CAS
SPC, DDC
BUA, BUM
Control substatus display 1
EXT-MAN,EXT-AUT
EXT-PMV,EXT-TRK
EXT-TRK,EXT-PMV EXT-TRK,EXT-PMV
Control substatus display 2
SV TRK, PV TRK OPEN, CLOSE
SV2-RMT, SV2-LCL
SEL1, SEL2
Control substatus display 3
STC-ON, STC-DSP,
ATSTUP
STC-ON, STC-DSP,
ATSTUP
STC-ON, STC-DSP
Note 1: This display appears only if an alarm occurs. If multiple alarms occur simultaneously, they are indicated in multiple lines.
Note 2: Only when the operation mode is in cascade setting automatic control (C mode) is a control status displayed, while nothing is indicated in
automatic control (A mode) or manual control (M mode).