Appendix 4 Secs Item List - Mitsubishi Electric MELSEC iQ-R Series User Manual

Appendix 4
This section is a list of items the SECS/GEM communication software uses with GEM scenarios.
Item name Description
ACKC5 Confirmation code
ACKC6 Confirmation code
ACKC7 Confirmation code
ALCD Alarm code
ALED Alarm on/off code
ALID Alarm ID
ALTX Alarm text
CEED Collected events or trace on/off code
CEID Acquired event ID
COMMACK Communication establishment
confirmation code
DATAID Data ID
DATALENGTH Total number of sending data bytes
DRACK Definition report agreement code
DSPER Data acquisition time
EAC Equipment confirmation code
ECDEF Equipment variable default value
ECID Equipment constant ID
ECMAX Equipment variable maximum value
ECMIN Equipment variable minimum value
ECNAME Equipment constant name
ECV Device constant
EDID Date ID that should be received
ERACK Enable/disable event report
confirmation code
FCNID Function identification
GRANT Permission code
GRANT6 Sending permission
LIMITACK Confirmation code for variable limit
attribute setting
LIMITID Specific limit for a variable referenced
by a corresponding limit attribute
LIMITMAX Maximum permitted value for limit
value of specific variable
LIMITMIN Minimum permitted value for limit
value of specific variable
LOWERDB Dead band lower limit
LRACK Link report confirmation code
LVACK Response code for variable limit
attribute setting
MDLN Equipment form
MEXP Message SxxFyy that should be
received
OFLACK Confirmation code for offline request
ONLACK Confirmation code for online request
PPID Process program ID
REPGSZ Report group size
RPTID Report ID
SECS Item List
Item format
Supported data type
BIN
BIN
BIN
BIN
BIN
U1, U2, U4
ASCII
BOOL
U1, U2, U4
BIN
U1, U2, U4
U1, U2, U4
BIN
ASCII
BIN

U1, U2, U4


ASCII
BIN, BOOL, ASCII, JIS8, I1,
I2, I4, U1, U2, U4, F4, F8
U1, U2, U4
BIN
U1
BIN
BIN
BIN
BIN



BIN
BIN
ASCII
ASCII
BIN
BIN
ASCII
U1, U2, U4
U1, U2, U4
Supported data size Changeability
(Byte)

1
1 

1

1

1

1
Maximum of 120 

1
1 

1
1 

1

1

6, 8

1
 

1
 
 
Maximum of 32 

Maximum of 2048 for BIN,
ASCII, and JIS8
Otherwise, 1
1 

1

1

1

1
1 

1
 
 
 

1
1 

Maximum of 20
Minimum of 2, maximum of 6 

1

1

Maximum of 80

1
1 

Appendix 4 SECS Item List

A
APPX
291