FEC920: USER GUIDE
Page 169
September 18
Parameter path
Description
Type
Hex
Dec
Resolution
VirtualChannel.9.Alarm1.ChangeTime
Rate-of-change alarm ‘Change Time’
uint8
2049
8265
Not applicable
VirtualChannel.9.Alarm1.Deviation
Deviation alarm ‘Deviation Value’
float32
2047
8263
Same as VirtualChannel.9.Main.PV
VirtualChannel.9.Alarm1.Dwell
Alarm dwell time
time_t
2045
8261
Set by Network.Modbus.TimeFormat
VirtualChannel.9.Alarm1.Hysteresis
Alarm hysteresis value
float32
2044
8260
Same as VirtualChannel.9.Main.PV
VirtualChannel.9.Alarm1.Inactive
1 = alarm source safe and ack’d (if necessary)
bool
204e
8270
Not applicable
VirtualChannel.9.Alarm1.Inhibit
1 = alarm inhibited
bool
2051
8273
Not applicable
VirtualChannel.9.Alarm1.Latch
As VirtualChannel1.Alarm1.Latch
uint8
2041
8257
Not applicable
VirtualChannel.9.Alarm1.NotAcknowledged
1 = alarm has not been acknowledged
bool
204f
8271
Not applicable
VirtualChannel.9.Alarm1.Reference
Deviation alarm ‘Reference’ value
float32
2046
8262
Same as VirtualChannel.9.Main.PV
VirtualChannel.9.Alarm1.Status
As VirtualChannel1.Alarm1.Status
uint8
0142
322
Not applicable
VirtualChannel.9.Alarm1.Threshold
Alarm trigger threshold
float32
2043
8259
Same as VirtualChannel.9.Main.PV
VirtualChannel.9.Alarm1.Type
As VirtualChannel1.Alarm1.Type
uint8
2040
8256
Not applicable
VirtualChannel.9.Alarm2.Acknowledge
1 = acknowledge alarm
bool
01d1
465
Not applicable
VirtualChannel.9.Alarm2.Acknowledgement
1 = alarm acknowledged
bool
2070
8304
Not applicable
VirtualChannel.9.Alarm2.Active
1 = alarm source active, or safe but not ack’d
bool
206b
8299
Not applicable
VirtualChannel.9.Alarm2.Amount
Rate-of-change alarm ‘Amount
float32
2068
8296
Same as VirtualChannel.9.Main.PV
VirtualChannel.9.Alarm2.AverageTime
Rate-of-change alarm ‘Average time’
time_t
206a
8298
Set by Network.Modbus.TimeFormat
VirtualChannel.9.Alarm2.Block
0 = Blocking alarms off; 1 = Blocking alarms on
uint8
2062
8290
Not applicable
VirtualChannel.9.Alarm2.ChangeTime
Rate-of-change alarm ‘Change Time’
uint8
2069
8297
Not applicable
VirtualChannel.9.Alarm2.Deviation
Deviation alarm ‘Deviation Value’
float32
2067
8295
Same as VirtualChannel.9.Main.PV
VirtualChannel.9.Alarm2.Dwell
Alarm dwell time
time_t
2065
8293
Set by Network.Modbus.TimeFormat
VirtualChannel.9.Alarm2.Hysteresis
Alarm hysteresis value
float32
2064
8292
Same as VirtualChannel.9.Main.PV
VirtualChannel.9.Alarm2.Inactive
1 = alarm source safe and ack’d (if necessary)
bool
206e
8302
Not applicable
VirtualChannel.9.Alarm2.Inhibit
Inhibit
bool
2071
8305
Not applicable
VirtualChannel.9.Alarm2.Latch
As VirtualChannel1.Alarm1.Latch
uint8
2061
8289
Not applicable
VirtualChannel.9.Alarm2.NotAcknowledged
1 = alarm has not been acknowledged
bool
206f
8303
Not applicable
VirtualChannel.9.Alarm2.Reference
Deviation alarm ‘Reference’ value
float32
2066
8294
Same as VirtualChannel.9.Main.PV
VirtualChannel.9.Alarm2.Status
As VirtualChannel1.Alarm1.Status
uint8
0143
323
Not applicable
VirtualChannel.9.Alarm2.Threshold
Alarm trigger threshold
float32
2063
8291
Same as VirtualChannel.9.Main.PV
VirtualChannel.9.Alarm2.Type
As VirtualChannel1.Alarm1.Type
uint8
2060
8288
Not applicable
VirtualChannel.9.Main.Descriptor
Virtual Channel descriptor
string_t
4bd8
19416
Not applicable
VirtualChannel.9.Main.Disable
1 = Virtual channel disabled
bool
2023
8227
Not applicable
VirtualChannel.9.Main.HighCutOff
The highest input value that will be totalised/counted
float32
2005
8197
Set by VirtualChannel.9.Main.Resolution
VirtualChannel.9.Main.Input1
Input 1 value
float32
2007
8199
Set by VirtualChannel.9.Main.Resolution
VirtualChannel.9.Main.Input2
Input 2 value
float32
2008
8200
Set by VirtualChannel.9.Main.Resolution
VirtualChannel.9.Main.LowCutOff
The lowest input value that will be totalised/counted
float32
2004
8196
Set by VirtualChannel.9.Main.Resolution
VirtualChannel.9.Main.ModbusInput
Modbus input value
float32
2006
8198
Set by VirtualChannel.9.Main.Resolution
VirtualChannel.9.Main.Operation
As VirtualChannel1.Main.Operation
uint8
2001
8193
Not applicable
VirtualChannel.9.Main.Period
The time period over which the calculation is made
int32
200a
8202
Not applicable
VirtualChannel.9.Main.Preset
Initiate preset. 0 = No; 1 = Yes
bool
200c
8204
Not applicable
VirtualChannel.9.Main.PresetValue
The Preset value
float32
200d
8205
Set by VirtualChannel.9.Main.Resolution
VirtualChannel.9.Main.PV
The virtual channel output value
float32
0140
320
Set by VirtualChannel.9.Main.Resolution
VirtualChannel.9.Main.Reset
Initiate reset. 0 = No; 1 = Yes
bool
200b
8203
Not applicable
VirtualChannel.9.Main.Resolution
Number of decimal places (0 to 6)
uint8
2002
8194
Not applicable
VirtualChannel.9.Main.Rollover
A pulse signal to indicate PV (output) has just rolled over
bool
2011
8209
Not applicable
VirtualChannel.9.Main.RolloverValue
Rollover value
float32
2012
8210
Set by VirtualChannel.9.Main.Resolution
VirtualChannel.9.Main.Status
As VirtualChannel1.Main.Status
uint8
0141
321
Not applicable
VirtualChannel.9.Main.TimeRemaining
Time remaining before the calculation is made
time_t
2009
8201
Set by Network.Modbus.TimeFormat
VirtualChannel.9.Main.Trigger
Increment/decrement counter. 0 = No; 1 = Yes
bool
200e
8206
Not applicable
VirtualChannel.9.Main.Type
As VirtualChannel1.Main.Type
uint8
2000
8192
Not applicable
VirtualChannel.9.Main.Units
Units descriptor
string_t
4bed
19437
Not applicable
VirtualChannel.9.Main.UnitsScaler
Units scaler for totalisers
float32
2003
8195
1dp
VirtualChannel.9.Trend.Colour
As VirtualChannel1.Trend.Colour
uint8
2020
8224
Not applicable
VirtualChannel.9.Trend.SpanHigh
Specifies the highest PV (output value) to be displayed
float32
2022
8226
Same as VirtualChannel.9.Main.PV
VirtualChannel.9.Trend.SpanLow
Specifies the lowest PV (output value) to be displayed
float32
2021
8225
Same as VirtualChannel.9.Main.PV
VirtualChannel.10.Alarm1.Acknowledge
1 = acknowledge alarm
bool
01d2
466
Not applicable
VirtualChannel.10.Alarm1.Acknowledgement
1 = alarm acknowledged
bool
20d0
8400
Not applicable
VirtualChannel.10.Alarm1.Active
1 = alarm source active, or safe but not ack’d
bool
20cb
8395
Not applicable
VirtualChannel.10.Alarm1.Amount
Rate-of-change alarm ‘Amount’
float32
20c8
8392
Same as VirtualChannel.10.Main.PV
VirtualChannel.10.Alarm1.AverageTime
Rate-of-change alarm ‘Average time’
time_t
20ca
8394
Set by Network.Modbus.TimeFormat
VirtualChannel.10.Alarm1.Block
0 = Blocking alarms off; 1 = Blocking alarms on
uint8
20c2
8386
Not applicable
VirtualChannel.10.Alarm1.ChangeTime
Rate-of-change alarm ‘Change Time’
uint8
20c9
8393
Not applicable
VirtualChannel.10.Alarm1.Deviation
Deviation alarm ‘Deviation Value’
float32
20c7
8391
Same as VirtualChannel.10.Main.PV
VirtualChannel.10.Alarm1.Dwell
Alarm dwell time
time_t
20c5
8389
Set by Network.Modbus.TimeFormat
VirtualChannel.10.Alarm1.Hysteresis
Alarm hysteresis value
float32
20c4
8388
Same as VirtualChannel.10.Main.PV
VirtualChannel.10.Alarm1.Inactive
1 = alarm source safe and ack’d (if necessary)
bool
20ce
8398
Not applicable
VirtualChannel.10.Alarm1.Inhibit
1 = alarm inhibited
bool
20d1
8401
Not applicable
VirtualChannel.10.Alarm1.Latch
As VirtualChannel1.Alarm1.Latch
uint8
20c1
8385
Not applicable
VirtualChannel.10.Alarm1.NotAcknowledged
1 = alarm has not been acknowledged
bool
20cf
8399
Not applicable
VirtualChannel.10.Alarm1.Reference
Deviation alarm ‘Reference’ value
float32
20c6
8390
Same as VirtualChannel.10.Main.PV
VirtualChannel.10.Alarm1.Status
As VirtualChannel1.Alarm1.Status
uint8
0146
326
Not applicable
VirtualChannel.10.Alarm1.Threshold
Alarm trigger threshold
float32
20c3
8387
Same as VirtualChannel.10.Main.PV
VirtualChannel.10.Alarm1.Type
As VirtualChannel1.Alarm1.Type
uint8
20c0
8384
Not applicable
VirtualChannel.10.Alarm2.Acknowledge
1 = acknowledge alarm
bool
01d3
467
Not applicable
VirtualChannel.10.Alarm2.Acknowledgement
1 = alarm acknowledged
bool
20f0
8432
Not applicable
VirtualChannel.10.Alarm2.Active
1 = alarm source active, or safe but not ack’d
bool
20eb
8427
Not applicable
VirtualChannel.10.Alarm2.Amount
Rate-of-change alarm ‘Amount’
float32
20e8
8424
Same as VirtualChannel.10.Main.PV
VirtualChannel.10.Alarm2.AverageTime
Rate-of-change alarm ‘Average time’
time_t
20ea
8426
Set by Network.Modbus.TimeFormat
VirtualChannel.10.Alarm2.Block
0 = Blocking alarms off; 1 = Blocking alarms on
uint8
20e2
8418
Not applicable
VirtualChannel.10.Alarm2.ChangeTime
Rate-of-change alarm ‘Change Time’
uint8
20e9
8425
Not applicable
A5E45696052A Rev-AA