Pfeiffer Vacuum TPG 361 User manual

BG 5510 BEN / D (2018-08)
COMMUNICATION PROTOCOL
Translation of the original instructions
TPG 361, TPG 362
Mnemonics and Pfeiffer Vacuum Protocol for S ingle- and Dual-Channel Measurement and Control
Units for ActiveLine Gauges

2BG 5510 BEN / D (2018-08) TPG36x.cp
SingleGauge TPG 361 and DualGauge TPG 362 →BG 5500 BEN
This document applies to products with part numbers:
PT G28 040 (SingleGauge TPG 361)
PT G28 290 (DualGauge TPG 362)
The part number (Mod.-No.) can be found on the product nameplate.
This manual is based on firmware version V010400.
If your unit does not work as described in this document, please check that it is
equipped with the above firmware version (→30).
If not indicated otherwise in the legends, the illustrations in this document corre-
spond to the unit TPG 362 (DualGauge). They apply to TPG 361 (SingleGauge) by
analogy.
We reserve the right to make technical changes without prior notice.
The RS485 interface is used for communication between the TPG 361 / TPG 362
and a computer or a terminal.
FullRange®Pfeiffer Vacuum GmbH
Product Identification
Validity
Intended Use
Trademark

BG 5510 BEN / D (2018-08) TPG36x.cp 3
Contents
Product Identification 2
Validity 2
Intended Use 2
Trademark 2
Contents 3
1Mnemonics Protocol 5
1.1 Installation 5
1.2 Data Transmission 5
1.3 Communication Protocol 6
1.4 Mnemonics 7
1.5 Measurement Mode 8
1.5.1 COM - Continuous Output of Measurement Values 8
1.5.2 CPR - Combined pressure range (linear gauges, TPG 362 only) 9
1.5.3 ERR - Error Status 10
1.5.4 PR1, PR2 - Measurement Data Gauge 1 or 2 10
1.5.5 PRX - Measurement Data Gauges 1 and 2 11
1.5.6 RES - Reset 11
1.5.7 SEN - Gauge on/off 12
1.5.8 TID - Gauge Identification 12
1.6 Switching Function Parameters 13
1.6.1 SPS - Switching Function Status 13
1.6.2 SP1 … SP4 - Switching Function 1 … 4 13
1.7 Gauge Parameters 14
1.7.1 CAL - Calibration Factor 14
1.7.2 CF1, CF2 - Calibration Factor Gauge 1 and 2 14
1.7.3 DCD - Display Resolution 14
1.7.4 DGS - Degas 15
1.7.5 FIL - Measurement Value Filter 15
1.7.6 FSR - Measurement Range (Linear Gauges) 16
1.7.7 GAS - Gas Type Correction 16
1.7.8 OFC - Offset Correction (Linear Gauges) 17
1.7.9 OFD - Offset Display (Linear Gauges) 17
1.8 Gauge Control 18
1.8.1 SC1, SC2 - Gauge 1 and 2 Control 18
1.9 General Parameters 18
1.9.1 BAL - Backlight 18
1.9.2 BAU - Transmission Rate (USB) 19
1.9.3 DCB - Display Control Bar Graph 20
1.9.4 DCC - Display Control Contrast 21
1.9.5 DCS - Display Control Screensave 21
1.9.6 ERA - Error Relay Allocation 22
1.9.7 EVA - Measurement Range End Value 22
1.9.8 FMT - Number Format (Measurement Value) 22
1.9.9 LNG - Language (Display) 23
1.9.10 NAD - Node (Device) Address for RS485 23
1.9.11 PRE - Pirani Range Extension 23
1.9.12 PRO - Protocol Serial Interface 24
1.9.13 PUC - Penning Underrange Control 24
1.9.14 SAV - Save Parameters (EEPROM) 24
1.9.15 UNI - Pressure Unit 25
1.10 Data Logger Parameters 25
1.10.1 DAT - Date 25
1.10.2 LCM - Start / Stop Data Logger 26
1.10.3 TIM - Time 26
1.11 Group Setup 27
1.11.1 SCM - Save / Load Parameters (USB) 27
1.12 Test Parameters 27
1.12.1 ADC - A/D Converter Test 27
1.12.2 CDA – Re-calibration 27
1.12.3 DIS - Display Test 28
1.12.4 EEP - EEPROM Test 28
1.12.5 EPR - FLASH Test 28
1.12.6 HDW - Hardware Version 28
1.12.7 IOT - I/O Test 29
1.12.8 LOC - Keylock 29

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1.12.9 MAC - Ethernet MAC Address 30
1.12.10 PNR - Firmware Version 30
1.12.11 RHR - Operating Hours 30
1.12.12 TAI - Test A/D Converter, ID Resistance 30
1.12.13 TKB - Operator Key Test 31
1.12.14 TLC - Torr Lock 31
1.12.15 TMP - Inner Temperature of the Unit 31
1.12.16 WDT - Watchdog Control 32
1.13 Further 32
1.13.1 AYT - Are you There? 32
1.13.2 ETH - Ethernet Configuration 32
1.14 Example 33
2Pfeiffer Vacuum Protocol 34
2.1 Telegram frame 34
2.2 Telegrams 35
2.2.1 master Telegrams 35
2.2.2 slave Telegrams 35
2.3 Data Types 36
2.4 Parameters 37
3Appendix 38
A: Literature 38
For cross-references within this document, the symbol (→XY) is used; for cross-
references to further documents listed under "Literature", use is made of the
symbol (→[Z]).

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1 Mnemonics Protocol
The serial interface is used for communication between the TPG 36x and a
computer. A terminal can be connected for test purposes.
When the TPG 36x is put into operation, it starts transmitting measured values in
intervals of 1 s. As soon as the first character is transferred to the TPG 36x, the
automatic transmission of measured values stops. After the necessary inquiries or
parameter modifications have been made, the transmission of measured values
can be started again with the COM command (→8).
Communication structure and procedures are identical for both controllers TPG 361
and TPG 362. Therefore the term TPG 36x is used in this chapter.
It should be noted that mnemonics with channel specific parameters must be
issued with the number of values corresponding to the number of channels of the
respective device.
Example: TPG 361
Transmit: OFC [,a]
TPG 362
Transmit: OFC [,a,b]
SingleGauge TPG 361 and DualGauge TPG 362 →BG 5500 BEN
The data transmission is bi-directional, i.e. data and control commands can be
transmitted in either direction.
SingleGauge TPG 361 and DualGauge TPG 362 →BG 5500 BEN
1 start bit, 8 data bits, no parity bit, 1 stop bit, no hardware handshake
The following abbreviations and symbols are used:
Symbol
Meaning
HOST
Computer or terminal
[...]
Optional elements
ASCII
American Standard Code for Information Interchange
Dez
Hex
<ETX> END OF TEXT (CTRL C)
Reset the interface 3 03
<CR> CARRIAGE RETURN
Go to beginning of line
13 0D
<LF> LINE FEED
Advance by one line
10 0A
<ENQ> ENQUIRY
Request for data transmission
5 05
<ACK> ACKNOWLEDGE
Positive report signal
6 06
<NAK> NEGATIVE ACKNOWLEDGE
Negative report signal
21 15
<ESC>
ESCAPE
27
1B
"Transmit": Data transfer from HOST to TPG 36x
"Receive": Data transfer from TPG 36x to HOST
After each ASCII string, the HOST must wait for a report signal (<ACK><CR><LF>
or <NAK> <CR><LF>).
The input buffer of the HOST must have a capacity of at least 32 bytes.
1.1 Installation
1.2 Data Transmission
Configuration of the interface
Data format
Definitions
Flow Control

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Messages are transmitted to the TPG 36x as ASCII strings in the form of mne-
monic operating codes and parameters. All mnemonics comprise three ASCII
characters.
Spaces are ignored. <ETX> (CTRL C) clears the input buffer in the TPG 36x.
Do not transmit any LINE FEEDS (<LF>) via the RS485 half duplex line
for fear they could cause data collisions on the bus.
The use of LINE FEED is generally allowed for other interfaces (USB,
Ethernet), but should be avoided for reasons of time.
HOST TPG 36x
Explanation
Mnemonics [and parameters] –––––––––>
<CR>[<LF>] ––––––––––––––––––––––>
Receives message with "end of
message"
<––––––––––––––––– <ACK><CR><LF> Positive acknowledgment of a re-
ceived message
When requested with a mnemonic instruction, the TPG 36x transmits the measure-
ment data or parameters as ASCII strings to the HOST.
<ENQ> must be transmitted to request the transmission of an ASCII string. Addi-
tional strings, according to the last selected mnemonic, are read out by repetitive
transmission of <ENQ>.
If <ENQ> is received without a valid request, the ERROR word is transmitted.
HOST TPG 36x
Explanation
Mnemonics [and parameters] –––––––––>
<CR>[<LF>] ––––––––––––––––––––––> Receives message with "end of message"
<–––––––––––––––––-<ACK><CR><LF> Positive acknowledgment of a re-
ceived message
<ENQ> -––––––––––––––––––––––––>
Requests to transmit data
<––––––––––––––– Measurement values
or parameters
<––––––––––––––––––––––– <CR><LF>
Transmits data with "end of mes-
sage"
::
<ENQ> –––––––––––––––––––––––––>
Requests to transmit data
<––––––––––––––– Measurement values
or parameters
<––––––––––––––––––––––– <CR><LF>
Transmits data with "end of mes-
sage"
The strings received are verified in the TPG 36x. If an error is detected, a negative
acknowledgment <NAK> is output.
HOST TPG 36x
Explanation
Mnemonics [and parameters] –––––––––>
<CR>[<LF>] -–––––––––––––––––––––>
Receives message with "end of
message"
***** Transmission or programming error *****
<–––– <NAK><CR><LF> Negative acknowledgment of a re-
ceived message
Mnemonics [and parameters] ––––––––->
<CR>[<LF>] –––––––––––––––––––––>
Receives message with "end of
message"
<–––––––––––––––– <ACK><CR><LF> Positive acknowledgment of a re-
ceived message
1.3 Communication
Protocol
Transmission format
Transmission protocol
Reception format
Reception protocol
Error processing
Error recognition protocol

BG 5510 BEN / D (2018-08) TPG36x.cp 7
→

ADC A/D converter test 27
AYT Are you there? 32
BAL Backlight 18
BAU Transmission rate (USB) 19
CAL Calibration factor 14
CDA Re-calibration 27
CF1
Calibration factor gauge 1 14
CF2
Calibration factor gauge 2 14
COM
Continuous mode of measurement values 8
CPR
Combined pressure (linear gauges) 9
DAT
Date 25
DCB
Display control bar graph 20
DCC
Display control contrast 21
DCD
Display resolution 14
DCS
Display control screensave 21
DGS
Degas 15
DIS
Display test 28
EEP
EEPROM test 28
EPR
FLASH test 28
ERA
Error relay allocation 22
ERR
Error status
10
ETH
Ethernet configuration
32
EVA
Measurement range end value
22
FIL
Measurement value filter
15
FMT
Number format (measurement value)
22
FSR
Measurement range (linear gauges)
16
GAS
Gas type correction
16
HDW Hardware version 28
IOT I/O test 29
LCM Start / stop data logger 26
LNG
Language (display)
23
LOC Keylock 29
MAC Ethernet MAC address 30
NAD Node (device) address for RS485 23
OFC Offset correction (linear gauges) 17
OFD Offset display (linear gauges) 17
PNR Firmware version 30
PR1
Measurement data gauge 1 10
PR2
Measurement data gauge 2 10
PRE
Pirani range extension 23
PRO
Protocol serial interface 24
PRX
Measurement data gauges 1 and 2 11
PUC
Penning underrange control 24
RES
Reset 11
RHR
Operating hours 30
SAV
Save parameters (EEPROM) 24
SC1
Gauge 1 control 18
SC2
Gauge 2 control 18
SCM
Save / load parameters (USB)
27
SEN
Gauge on/off
12
1.4 Mnemonics

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SP1
Switching function 1 13
SP2
Switching function 2
13
SP3
Switching function 3
13
SP4
Switching function 4
13
SPS
Switching function status
13
TAI
Test A/D converter, ID resistance
30
TID
Gauge identification
12
TIM
Time
26
TKB
Operator key test
31
TLC
Torr lock
31
TMP
Inner temperature of the unit
31
UNI
Pressure unit
25
WDT Watchdog control 32
Transmit: COM [,a] <CR>[<LF>]
Description
a
Mode, a =
0 –> 100 ms
1 –> 1 s (default)
2 –> 1 minute
Receive: <ACK><CR><LF>
<ACK> is immediately followed by the continuous output of the
measurement value in the desired interval.
Receive: b,sx.xxxxEsxx,c,sy.yyyyEsyy <CR><LF>
Description
b
Status gauge 1, b =
0 –> Measurement data okay
1 –> Underrange
2 –> Overrange
3 –> Sensor error
4 –> Sensor off (IKR, PKR, IMR, PBR)
5 –> No sensor (
output
: 5.2.0000E-2 [hPa])
6 –> Identification error
sx.xxxxEsxx Measurement value gauge 1 1) [in current
pressure unit] (s = sign)
c
Status gauge 2
sy.yyyyEsyy Measurement value gauge 2 1) [in current
pressure unit] (s = sign)
1) Values always in exponential format.
For logarithmic gauges, the 3rd and 4th decimal are always 0.
1.5 Measurement Mode
1.5.1 COM - Continuous
Output of Measurement
Values

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This command combines different pressure ranges to one combined pressure
range, if several linear gauges with different full scales (F.S.) are connected to the
TPG 362. Thus the pressure for this combined pressure range can be read out with
best accuracy.
The pressure is higher than the full scale of the gauge with lower full scale: The
TPG 362 switches to the gauge with higher full scale.
Only one linear gauge is connected: The measurement value of this gauge is out-
put.
No linear gauge is connected: 1000 hPa is output as measurement value and the
parameters a and b are set to "0".
Channel 1:
linear gauge, 1000 hPa F.S.
Channel 2:
linear gauge, 10 hPa F.S.
Channel 1
Channel 2
Combined pressure range
Transmit command:
CPR,1,2
CPR,2,1
Transmit: CPR [,a,b] <CR>[<LF>]
Description
a
Measurement channel of the selected gauge, a =
0 –> No linear gauge connected
1 –> Measurement channel 1
2 –> Measurement channel 2
b
Measurement channel of the selected gauge
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a,b,sx.xxxxEsxx
Description
a
Measurement channel of the selected gauge
b
Measurement channel of the selected gauge
sx.xxxxEsxx Combined measurement value 1) [in current pres-
sure unit]
(s = sign)
1) Values always in exponential format.
1.5.2 CPR - Combined
pressure range (linear
gauges,
TPG 362 only)
Example

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Transmit: ERR <CR>[<LF>] Error status
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: aaaa <CR><LF>
Description
aaaa
Error status, aaaa =
0000 –> No error
1000 –> ERROR (controller error (see display on front
panel)
0100 –> NO HWR (no hardware)
0010 –> PAR (inadmissible parameter)
0001 –> SYN (Syntax error)
The ERROR word is cancelled when read out. If the error persists, it is
immediately set again.
Transmit: PRn <CR>[<LF>]
Description
n
Measurement value, n =
1 –> Gauge 1
2 –> Gauge 2
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a,sx.xxxxEsxx <CR><LF>
Description
a
Status, a =
0 –> Measurement data okay
1 –> Underrange
2 –> Overrange
3 –> Sensor error
4 –> Sensor off (IKR, PKR, IMR, PBR)
5 –> No sensor (output: 5,2.0000E-2 [hPa])
6 –> Identification error
sx.xxxxEsxx Measurement value1) [in current pressure unit]
(s = sign)
1) Values always in exponential format.
For logarithmic gauges, the 3rd and 4th decimal are always 0.
1.5.3 ERR - Error Status
1.5.4 PR1, PR2 - Measurement
Data Gauge 1 or 2

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Transmit: PRX <CR>[<LF>]
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a,sx.xxxxEsxx,b,sy.yyyyEsyy <CR><LF>
Description
a
Status gauge 1, a =
0 –> Measurement data okay
1 –> Underrange
2 –> Overrange
3 –> Sensor error
4 –> Sensor off (IKR, PKR, IMR, PBR)
5 –> No sensor (output: 5,2.0000E-2 [hPa])
6 –> Identification error
sx.xxxxEsxx Measurement value gauge 1 1) [in current
pressure unit] (s = sign)
b
Status gauge 2
sy.yyyyEsyy Measurement value gauge 2 1) [in current
pressure unit] (s = sign)
1) Values always in exponential format.
For logarithmic gauges, the 3rd and 4th decimal are always 0.
Transmit: RES [,a] <CR>[<LF>]
Description
a
a =
1 –> Cancels currently active error and re-
turns to measurement mode
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: b[,b][,b][…] <CR><LF>
Description (TPG 361 only)
b
List of all present error messages, b =
0 –> No error
1 –> Watchdog has responded
2 –> Task fail error
5 –> FLASH error
6 –> RAM error
7 –> EEPROM error
9 –> DISPLAY error
10 –> A/D converter error
11 –> Gauge error (e.g. filament rupture, no supply)
12 –> Gauge identification error
1.5.5 PRX - Measurement Data
Gauges 1 and 2
1.5.6 RES - Reset

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Description (TPG 362 only)
b
List of all present error messages, b =
0 –> No error
1 –> Watchdog has responded
2 –> Task fail error
3 –> FLASH error
4 –> RAM error
5 –> EEPROM error
6 –> DISPLAY error
7 –> A/D converter error
8 –> UART error
9 –> Gauge 1 error (e.g. filament rupture, no supply)
10 –> Gauge 1 identification error
11 –> Gauge 2 error (e.g. filament rupture, no supply)
12 –> Gauge 2 identification error
Transmit: SEN [,a,b] <CR>[<LF>]
Description
a
Gauge 1, a =
0 –> No status change
1 –> Turn gauge off
2 –> Turn gauge on
b
Gauge 2
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a,b <CR><LF>
Description
a
Status gauge 1, a =
0 –> Gauge cannot be turned on/off
1 –> Gauge turned off
2 –> Gauge turned on
b
Status gauge 2
Transmit: TID <CR>[<LF>] Gauge identification
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a,b <CR><LF>
Description
a
Identification gauge 1, a =
TPR/PCR (Pirani Gauge or Pirani Capacitance Gauge)
IKR (Cold Cathode Gauge 10
-9
and 10
-11
)
PKR (FullRange
®
CC Gauge)
PBR (FullRange
®
BA Gauge)
IMR (Pirani / High Pressure Gauge)
CMR/APR (Linear gauge
noSENSOR (no sensor)
noIDENT (no identifier)
b
Identification gauge 2
1.5.7 SEN - Gauge on/off
1.5.8 TID - Gauge Identification

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Transmit: SPS <CR>[<LF>]
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a,b,c,d <CR><LF>
Description
a
Status switching function 1, a =
0 –> Off
1 –> On
b
Status switching function 2
c
Status switching function 3
d
Status switching function 4
Transmit: SPx [,a,x.xxxxEsxx,y.yyyyEsyy] <CR>[<LF>]
Description
x
Switching function, x =
1 –> Switching function 1
2 –> Switching function 2
3 –> Switching function 3
4 –> Switching function 4
a
Switching function assignment, a =
0 –> Turned off
1 –> Turned on
2 –> Measurement channel
1
3 –> Measurement channel 2
x.xxxxEsxx Lower threshold 1) [in current pressure unit]
(default = depending on gauge) (s = sign)
y.yyyyEsyy Upper threshold 1) [in current pressure unit]
(default = depending on gauge) (s = sign)
1) Values can be entered in any format.
They are internally converted into the floating point format.
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a,x.xxxxEsxx,y.yyyyEsyy <CR><LF>
Description
a
Switching function assignment
x.xxxxEsxx Lower threshold [in current pressure unit]
(s = sign)
y.yyyyEsyy Upper threshold [in current pressure unit]
(s = sign)
1.6 Switching Function
Parameters
1.6.1 SPS - Switching Function
Status
1.6.2 SP1 … SP4 - Switching
Function 1 … 4

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Precondition: Parameter "GAS" is set to "7" (other gases) (→16). Except
linear gauges.
This parameter is effective in the entire measurement range of the gauge.
Transmit: CAL [,a.aaa,b.bbb] <CR>[<LF>]
Description
a.aaa Calibration factor gauge 1, 0.100 … 10.000
(default = 1.000)
b.bbb
Calibration factor gauge 2
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a.aaa,b.bbb <CR><LF>
Description
a.aaa
Calibration factor gauge 1
b.bbb
Calibration factor gauge 2
Transmit: CFx [,a.aaa] <CR>[<LF>]
Description
x
Calibration factor gauge x =
1 –> Gauge 1
2 –> Gauge 2
a.aaa Calibration factor gauge x, 0.100 … 10.000
(default = 1.000)
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a.aaa,b.bbb <CR><LF>
Description
a.aaa
Calibration factor gauge 1
b.bbb
Calibration factor gauge 2
Transmit: DCD [,a,a] <CR>[<LF>]
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a,a <CR><LF>
Description
a
Resolution a =
0 –> AUTO (default)
1 –> One digit
2 –> Two digits
3 –> Three digits
4 –> Four digits
When the PrE (→23) is ON and the pressure is in the range p<1.0E-4 hPa the
display resolution of the PCR Gauge is reduced by one decimal digit.
1.7 Gauge Parameters
1.7.1 CAL - Calibration Factor
1.7.2 CF1, CF2 - Calibration
Factor Gauge 1 and 2
1.7.3 DCD - Display Resolution

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Transmit: DGS [,a,b] <CR>[<LF>]
Description
a
Degas gauge 1, a =
0 –> Degas off (default)
1 –> Degas on (3 minutes)
b
Degas gauge 2
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a,b <CR><LF>
Description
a
Degas status gauge 1
b Degas status gauge 2
Transmit: FIL [,a,b] <CR>[<LF>]
Description
a
Filter gauge 1, a =
0 –> Filter off
1 –> Fast
2 –> Normal
3 –> Slow
b
Filter gauge 2
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a,b <CR><LF>
Description
a
Filter time constant gauge 1
b
Filter time constant gauge 2
1.7.4 DGS - Degas
1.7.5 FIL - Measurement Value
Filter

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The full scale value of the measurement range (Full Scale) of linear
gauges has to be defined by the user; the full scale value of logarithmic
gauges is automatically recognized.
Transmit: FSR [,a,b] <CR>[<LF>]
Description
a
Full scale value gauge 1, a =
0 –> 0.01 hPa
1 –> 0.1 hPa
2 –> 1 hPa
3 –> 10 hPa
4 –> 100 hPa
5 –> 1000 hPa (default)
6 –> 200 kPa
7 –> 500 kPa
8 –> 1000 kPa
9 –> 5000 kPa
b
Full scale value gauge 2
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a,b <CR><LF>
Description
a
Full scale value gauge 1
b
Full scale value gauge 2
Transmit: GAS [,a,a] <CR>[<LF>]
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a,a <CR><LF>
Description
a
Gas type correction, a =
0 –> nitrogen / air (default)
1 –> Argon
2 –> Hydrogen
3 –> Helium
4 –> Neon
5 –> Krypton
6 –> Xenon
7 –> Other gases
Calibration factor for other gases by enter-
ing command "COR" (
→ 
14)
1.7.6 FSR - Measurement
Range (Linear Gauges)
1.7.7 GAS - Gas Type
Correction

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Transmit: OFC [,a,b] <CR>[<LF>]
Description
a
Offset correction gauge 1, a =
0 –> Off (default)
1 –> On
2 –> Determine offset value and activate offset correction
b
Offset correction gauge 2
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a,b <CR><LF>
Description
a
Offset correction gauge 1
b
Offset correction gauge 2
Transmit: OFD [,sa.aaaaEsaa,sb.bbbbEsbb] <CR>[<LF>]
Description
sa.aaaaEsaa Gauge 1 Offset 1),[in current pressure unit]
(default = 0.0000E+00) (s = sign)
sb.bbbbEsbb
Gauge 2 Offset
1)
(s = sign)
1) Values can be entered in any format. They are internally converted
into the floating point format.
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: sa.aaaaEsaa,sb.bbbbEsbb <CR><LF>
Description
sa.aaaaEsaa
Gauge 1 Offset
1)
(s = sign)
sb.bbbbEsbb
Gauge 2 Offset
1)
(s = sign)
1.7.8 OFC - Offset Correction
(Linear Gauges)
1.7.9 OFD - Offset Display
(Linear Gauges)

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Transmit: SCx [,a,b,c.ccEscc,d.ddEsdd] <CR>[<LF>]
Description
x
Controlled gauge, x =
1 –> Gauge 1
2 –> Gauge 2
a
Gauge activation, a =
0 –> Manual (default)
1 –> Hot start
2 –> External
3 –> Via measurement channel 1
4 –> Via measurement channel 2
b
Gauge deactivation, b =
0 –> Manual (default)
1 –> Self control
2 –> External
3 –> Via measurement channel 1
4 –> Via measurement channel 2
c.ccEscc
ON threshold (s = sign)
d.ddEsdd
OFF threshold (s = sign)
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a,b,c.ccEscc,d.ddEsdd <CR><LF>
Description
a
Gauge activation
b
Gauge deactivation
c.ccEscc
ON threshold (s = sign)
d.ddEsdd
OFF threshold (s = sign)
Transmit: BAL [,a] <CR>[<LF>]
Description
a Backlight in percent, a = 0 … 100
100% is full brightness
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: a <CR><LF>
Description
a
Backlight
1.8 Gauge Control
1.8.1 SC1, SC2 - Gauge 1 and 2
Control
1.9 General Parameters
1.9.1 BAL - Backlight

BG 5510 BEN / D (2018-08) TPG36x.cp 19
Transmit: BAU [,a] <CR>[<LF>]
Description
a
Transmission rate, a =
0 –> 9600 Baud (default)
1 –> 19200 Baud
2 –> 38400 Baud
3 –> 57600 Baud
4 –> 115200 Baud
The transmission rate of the RS485 interface is 9600 baud and cannot
be changed.
As soon as the new baud rate has been entered, the report signal is
transmitted at the new transmission rate.
Receive: <ACK><CR><LF>
Transmit: <ENQ>
Receive: x <CR><LF>
Description
a
Transmission rate
1.9.2 BAU - Transmission Rate
(USB)

20 BG 5510 BEN / D (2018-08) TPG36x.cp
Transmit: DCB [,a,b] <CR>[<LF>]
Description
a
Measurement channel, a =
0 –> Measurement channel 1
1 –> Measurement channel 2
b
Bar graph display, b =
0 –> Off (default)
1 –> Bar graph covering full scale range
2 –> Bar graph covering full scale range, high-level
presentation
3 –> Bar graph covering full scale range and setpoint
threshold
4 –> Bar graph covering a decade according to current
measurement value
5 –> Bar graph covering a decade according to current
measurement value, high-level presentation
6 –> Bar graph covering a decade according to current
measurement value and setpoint threshold
7 –> p = f(t), autoscaled, 0.2 seconds / pixel
For each measurement every 200 ms a measurement
value is saved in tabular form and the last 100
measurement values (=100 pixel) are shown
autoscaled.
The represented data string corresponds to a logging
duration of 20 seconds.
8 –> p = f(t), autoscaled, 1 second / pixel
For each measurement every second a measurement
value is saved in tabular form and the last 100
measurement values (=100 pixel) are shown
autoscaled.
The represented data string corresponds to a logging
duration of 100 seconds.
9 –> p = f(t), autoscaled, 6 seconds / pixel
For each measurement every 6 seconds a
measurement value is saved in tabular form and the
last 100 measurement values (=100 pixel) are shown
autoscaled.
The represented data string corresponds to a logging
duration of 10 minutes.
10 –> p = f(t), autoscaled, 1 minute / pixel
For each measurement every minute a measurement
value is saved in tabular form and the last 100
measurement values (=100 pixel) are shown
autoscaled.
The represented data string corresponds to a logging
duration of 100 minutes.
11 –> p = f(t), autoscaled, 30 minutes / pixel
For each measurement every 30 minutes a measure-
ment value is saved in tabular form and the last 100
measurement values (=100 pixel) are shown auto-
scaled.
The represented data string corresponds to a logging
duration of 50 houres.
12 –> The sensor type is displayed for the selected
measuring channel.
1.9.3 DCB - Display Control
Bar Graph