Clinton HF-15B - Analog Interface Pin Functions

Model HF-15B High Frequency Spark Tester
HF-15B Instruction Manual – Page 42
Fieldbus Spark Tester Parameter Addresses
The fieldbus parameters are 2 bytes each. The LSB will be at the lower byte offset, the MSB at the higher byte offset. As an
example, the setpoint is 5000 volts (1388H in hexadecimal). The setpoint is at a word address 5. When reading the two bytes of the
setpoint the LSB (value of 88H) would be received first and the MSB (value of 13H) would be received second. Some PLCs start with
addresses of 0, some start with 1. The table below assumes the addresses start with 0.
REMOTE ENABLE must be set to 1 before any other parameters can be modified. When set, REMOTE ENABLE locks out
voltage control from the display.
The unit responds to changes in data. For example, the REMOVE VOLTAGE COMMAND and the AF RESET COMMAND
can be activated initially by changing their values to 1. Subsequent changes must use a value that differs from the
previous one. For example, to activate either of these commands again their values could be changed to 0.
Command
Address
R/W
Notes
RESERVED
0
-
RESERVED
1
-
REMOVE VOLTAGE COMMAND
2
W
Will turn off/on the voltage without changing the setpoint
AF RESET COMMAND
3
W
Will reset All Fault Alarms
REMOTE ENABLE
4
RW
Enables Data writes from External bus
SETPOINT VOLTS
5
RW
Requested voltage in Volts
ACTIVE LINE SPEED
6
RW
Line Speed in ft/m
VMON VOLTS
7
R
Voltage at metering windings (Actual Voltage) in Volts
EVMON VOLTS
8
R
Voltage at Electrode in Volts
IMON PERCENT LOAD
9
R
Percent of maximum load on the system
AF COUNT
10
RW
All fault count (Write 0 To Clear This Count)
PH COUNT
11
RW
Pinhole fault count (Write 0 To Clear This Count)
MC COUNT
12
RW
Metallic Contact fault count (Write 0 To Clear This Count)
MP COUNT
13
RW
Multi-pinhole fault count (Write 0 To Clear This Count)
GB COUNT
14
RW
Gross Bare Wire fault count (Write 0 To Clear This Count)
STATUS FLAGS 0
15
R
See Definitions below
STATUS FLAGS 1
16
R
See Definitions below