Watlow D4T Data Logger
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153
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Chapter 6 Appendix
Parameter Class
and Name
Range
Default
Data Type and
Attributes
Modbus Registers
Date of Manufacture
0 To 2147483647
"signed 32-bit
Access=R"
14
D4T Part Number
15 To 15
"string
Access=R"
16
Device Name
0 To 32
D4T
"string
Access=RW"
46
Restore Settings From
"None (61)
Factory (31)"
None (61)
"unsigned 16-bit
Access = RW"
86
Device Status
"OK (138)
Fail (32)"
"unsigned 16-bit
Access = R"
90
AC Line Frequency
"50 Hz (3)
60 Hz (4)"
60 Hz (4)
"unsigned 16-bit
Access = RW"
94
Display
Display Units
"F (30)
C (15)"
F (30)
"unsigned 16-bit
Access = RW"
1328
Alarm (See:
p .58
)
Type
"Off (62)
Process Alarm (76)
Deviation Alarm (24)"
Off (62)
"unsigned 16-bit
Access = RW"
"Alarm 1: 1330
Alarm n: 1330+((n-1)*
100)"
Sides
"Both (13)
High (37)
Low (53)"
Both (13)
"unsigned 16-bit
Access = RW"
"Alarm 1: 1332
Alarm n: 1332+((n-1)*
100)"
High Set Point
-99999 To 99999
300.0
"IEEE Float
Access=RW"
"Alarm 1: 1334
Alarm n: 1334+((n-1)*
100)"
Low Set Point
-99999 To 99999
32.0
"IEEE Float
Access=RW"
"Alarm 1: 1336
Alarm n: 1336+((n-1)*
100)"
Hysteresis
0.001 To 9999
1.0
"IEEE Float
Access=RW"
"Alarm 1: 1338
Alarm n: 1338+((n-1)*
100)"
Silencing
"Off (62)
On (63)"
Off (62)
"unsigned 16-bit
Access = RW"
"Alarm 1: 1340
Alarm n: 1340+((n-1)*
100)"
Latching
"Non-Latching (60)
Latching (49)"
Non-Latching (60)
"unsigned 16-bit
Access = RW"
"Alarm 1: 1342
Alarm n: 1342+((n-1)*
100)"
Blocking
"Off (62)
Startup (88)
Set Point (85)
Both (13)"
Off (62)
"unsigned 16-bit
Access = RW"
"Alarm 1: 1344
Alarm n: 1344+((n-1)*
100)"
Logic
"Close On Alarm (17)
Open On Alarm (66)"
Close On Alarm (17)
"unsigned 16-bit
Access = RW"
"Alarm 1: 1346
Alarm n: 1346+((n-1)*
100)"
Delay Time
0 To 9999
0
"unsigned 16-bit
Access=RW"
"Alarm 1: 1348
Alarm n: 1348+((n-1)*
100)"
Output Value
"On (63)
Off (62)"
"unsigned 16-bit
Access = R"
"Alarm 1: 1350
Alarm n: 1350+((n-1)*
100)"
Clear Alarm
"Ignore (204)
Clear (129)"
Ignore (204)
"unsigned 16-bit
Access = RW"
"Alarm 1: 1352
Alarm n: 1352+((n-1)*
100)"