West Control Solutions 8700+ - Manual (Page 119)

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Page 114
P6010 & P8010 Model Group 59305, Issue 7 – March 2014
Word Parameters
Table 30. P6010 & P8010 Communications - Word Parameters
Parameter Modbus
Parameter No.
ASCII Ident &
Message Types
Notes
Process Variable 1 RO M
Type 2 RO
Current value of PV.
If under-range = 62976 (<??>5 ASCII)
If over-range = 63232 (<??>0 ASCII)
Sensor break = 63488 (ASCII = n/a)
Process Variable
Maximum 2 RO A
Type 2 RO
Maximum displayed value since this
was last reset. Shows under/over-
range or break values if appropriate.
Process Variable
Minimum 3 RO B
Type 2 RO
Minimum displayed value since this
was last reset. Shows under/over-
range or break values if appropriate.
Alarm 1 Elapsed
Time 4 RO T
Type 2 RO
Accumulated alarm 1 active time since
this was last reset. Returns the over-
range value if the time exceeds 1000
minutes. Units = seconds in Modbus
Instrument Status 5 RO L
Type 2 RO
Bit Meaning
0 Alarm 1 status.
0 = activated, 1 = safe
1 Alarm 2 status.
0 = activated, 1 = safe
2 Alarm 3 status.
0 = activated, 1 = safe
3 Change Indicator. 1 =
A parameter other than
instrument status or PV
has changed since the
last time the status
word was read.
4 This bit always = 1
5 Alarm 1 latched status.
0 = latched
1 = not latched or non-
latching output type
6 This bit always = 0
7 This bit always = 0
Process Variable
Offset 6 R/W J
Type 2, 3/4 R/W
Modified PV = Actual PV + PV Offset.
Limited by Scale Range Maximum
and Scale Range Minimum.
Alarm 1 Value 7 R/W C
Type 2, 3/4 R/W
Alarm 1 active at this level
Alarm 2 Value 8 R/W E
Type 2, 3/4 R/W
Alarm 2 active at this level
Alarm 3 Value 9 R/W N
Type 2, 3/4 R/W
Alarm 3 active at this level
Alarm 1 Hysteresis 10 R/W D
Type 2, 3/4 R/W
0 to 100% of span