Sysway Command Lists - Omron E5AN Communications Manual

SECTION 4 SYSWAY (E5@J and E5@X Format) Communications Procedures

■ SYSWAY Command Lists

Header
Category
code
Selecting Communi- MB
cations Writing
Write mode selection ME
(See note 1.)
MA
Save operation/ MW
adjustment set value
Writing set values WS
W%
W%
WB
WN
WV
WI
WW
Read set value and RS
manipulated variable
R%
monitor
R%
RB
RN
RV
RI
RW
RO
Read SP upper and RL
lower limit values
Read process value RX
Read the heater RZ
current monitor
Read the initial status RU
• No commands will be accepted and no responses will be returned when a memory error (RAM error)
has occurred or during initialization (until the process value is recognized after power is turned ON).
• When a write operation is performed while there is a memory error (EEPROM error), data will not be
written and the command will end with "normal completion." Read operations will be executed
normally.
Note 1: The number of EEPROM (non-volatile memory) write operations is limited. Therefore, use RAM
write mode when frequently overwriting data.
Note 2: The process value read range is the same as the input's display range.
Note 3: Status (last 4 bytes)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 0 0 0 0 0 0 0 0 0 0
• Overflow: Set 1 when the heater current value is greater than 55.0 A.
• Display hold: Set 1 when the control output ON time is less than 100 ms. The previous heater current
value is held.
4-4
Data
Command
code
01 Select communications writing
01 Select backup mode
01 Select RAM write mode
01 Save operation/adjustment set value
01 Write set point
01 Write alarm value 1
02 Write alarm value 2
01 Write proportional band
01 Write integral time
01 Write derivative time
01 Write temperature input shift values
01 Write heater burnout detection
01 Read set point
01 Write alarm value 1
02 Write alarm value 2
01 Read proportional band
01 Write integral time
01 Write derivative time
01 Write temperature input shift values
01 Write heater burnout detection
01 Read MV monitor
01 Read SP upper and lower limit values
01 Read process value
01 Heater current value monitor
01 Read the initial status
Bit position
0 0 0 0
Overflow
Display hold
Data
R/W
length
Write 4B
Write None
Write 4B
Read 4B
Read 8B
Read 8B
Read 8B
Read 5B
Note 4. Status (first 2 bytes)
7 6 5 4 3 2 1 0 Bit position
0 0 0 0 0 0
Control
Output operation:
Remarks
Read both upper/
lower limit val-
ues at once
See note 2.
See note 3.
See note 4.
1 0
ON/OFF PID
Direct Reverse