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CHAPTER 4 Sysway (E5 J, X format) COMMUNICATIONS PROCEDURES
E5AN/EN/CN/GN
4--4
J
Sysway command lists
Category
Header
code
Data
code
Command
R/W
Data
length
Remarks
Communications writ-
ing selection
MB
01
Select communications writing
W
4B
Write mode selection
ME
01
Select backup mode
MA
01
Select RAM write mode
W
None
Save run/adjustment
set value
MW
01
Save operation/adjustment set
value
W
None
Write set value
WS
01
Write set point
W%
01
Write alarm value 1
W%
02
Write alarm value 2
WB
01
Write proportional band
W
4B
WN
01
Write integral time
W
4B
WV
01
Write derivative time
WI
01
Write temperature input shift values
WW
01
Write heater burnout detection
Read set value and
i l t d
i bl
RS
01
Read set point
manipulated variable
monitor
R%
01
Read alarm value 1
monitor
R%
02
Read alarm value 2
RB
01
Read proportional band
RN
01
Read integral time
R
4B
RV
01
Read derivative time
R
4B
RI
01
Read input shift values
RW
01
Read temperature heater burnout
detection
RO
01
Read MV monitor
Read SP upper and
lower limit values
RL
01
Read SP upper and lower limit val-
ues
R
8B
Read both
upper/lower
limit values at
once
Read process value
RX
01
Read the process value
R
8B
*1
RZ
01
Read the heater current monitor
R
8B
Read initial status
RU
01
Read the initial status
R
5B
*2
* In a memory error (RAM error) or initial state (until the control starts to look for the process value after the power is turned ON),
no commands will be accepted, and no response will be returned.
* When writing is carried out when a memory error (RAM error) has occurred, writing to EEPROM is not carried out, and processing
ends in “normal completion.” Reading is as normal.
0
0
15
8
14 13 12 11
9
10
0
0
7
0
6 5 4 3
1
2
0
0
0
0
Bit position
0
16
0
0
0
0
0
0
0
0
7
0
6 5 4 3
1
2
0
0
0
0
Bit position
Overflow
Display hold
Control mode ON/OFF PID
1
0
Output operation
Direct operation/reverse operation
*1 Status
*2 Status
* 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 190 ms. The previous heater current value is held.