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Modbus
Name
Type
Bytes
address
(16 bit)
14 lo
LED
uc
1
14 hi
Display booleans
uc
1
14 hi
Display booleans
uc
1
15 - 18
Name
c(8)
8
19 lo
Calibration Current
uc
1
Value
19 hi
IOMode booleans
uc
1
1
20
Current output low
s
2
temperature (0 or 4mA
equivalent tempera-
ture)
21
Current output high
s
2
temperature limit
(20mA equivalent tem-
perature)
22
High target alarm
s
2
threshold
23
Low target alarm
s
2
threshold
24 lo
High instrument alarm
c
1
threshold
24 hi
Low instrument alarm
c
1
threshold
25 lo
AlarmMode booleans
uc
1
Bits
Default
Permitted Range
Flash rate
5
1 - 30 flashes per sec-
ond
7 set IP
0x81
0 = OHCP,
1 = Set IP
6 Use back-
0=off, 1=on
ground correction
5 Automatic
0=off, 1=on
calculation of
background tem-
perature
4 Process win-
0 = none, 1 = process
dow
window
3 lock (internal
use)
2 LED on
0 = off, 1 = on
1 Demo mode
0 = off, 1 = on
0 Camera or data
0 = data, 1 = live
screen on display
camera
Default
Alphanumerics
text
10
0 - 20mA
7 Display un-
0
0 = off, 1 = on
der-range values
6 CMD IN mode
0 = track & hold, 1 =
peak picker reset
5 Raw data
0 = off, 1 = on
4 Calibration
0 = off, 1 = on
current output
3 CMD OUT
0 = use for alarms (if
set), 1 = use as watch-
dog
2 CMD IN
0 = don't use, 1 = use
(according to CMD IN
mode)
1 NONC
0 = normally open, 1 =
normally closed
0 Analogue Mode
0 = 4 - 20mA,
1 = 0 - 20mA
0
0 - 5000 deg C or F
1600
0 - 5000 deg C or F
1600
0 - 5000 deg C or F
0
0 - 5000 deg C or F
70
0 - 70 deg C or F
0
0 - 70 deg C or F
4 Low Signal %
0
0 for off, 1 for on
Access Notes
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Use bit 2 of register 134 to switch the LED on and off as in example 5 below - this bit of register 14 is just an indicator of LED
current state.
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In demo mode, the LED is switched on when any button is pressed on the keypad, and remains on for 15 minutes rather than
30s.
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A user-configurable name
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Set bit 12 of register 19 to switch on the fixed calibration current of this value. It will switch off automatically after 15 minutes
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The bit will be set to zero and the calibration current switched off automatically after 15 minutes.
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The watchdog setting toggles the CMD Out line every second.
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All bits can be set independently. If multiple bits are set, an alarm will be raised if any threshold is exceeded. Note that low sig-
nal% alarm is only available in ratio modes.
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