Manual
LDU 78.1 Technical Manual, Rev. 12 May 2011
Page 12 of 36
7. Commands – Overview
Command Short description Parameter value Page
AD
Communication: Device Address 0...255 27
A n
Setpoints: Output of Gros (0) or Net (1) for setpoints S0 and S1 0 or 1 26
BR
Communication: Baud Rate 9600…115200 baud 27
CE
Calibration: Open Calibration Sequence; Read TAC Counter 0...65535 15
CG
Calibration: Set Calibration Gain (Span) at Load > Zero 0...99999 d 16
CI
Calibration: Minimum Output Value –99999...0 d 15
CL
Communication: Close Device None 27
CM n
Calibration: Set Maximum Output Value (n = 1, 2 or 3) 1...99999 d 15
CS
Save the Calibration Data (CM, CI, DS, DP, etc.) to the EEPROM None
18, 28
CZ
Calibration: Set Calibration Zero Point – Scale Without Load None
16
DP
Calibration: Set Decimal Point Position 0...5 16
DS
Calibration: Set Display Step Size 1, 2, 5, 10, …, 200 d 16
DT
Trigger function: Calculation Time for Short-time Average 0...65535 ms 31
DX
Communication: Set Half-duplex (0) or Full-duplex (1) 0 or 1 27
FD
Factory default settings: Write Data to the EEPROM (TAC protected) None 17
FM
Digital filter: Filter Mode 0 or 1 19
FL
Digital filter: Filter Cut-off Frequency 0...7 19
GA
Output: Get Triggered Average Value None 22, 29
GG
Output: Get Gross Value None
22
GI
Saves an image file from the LDU’s EEPROM None 28
GL
Output: Get Data String “Average/Gross/Status“ None 23
GN
Output: Get Net Value None
22
GS
Output: Get ADC Sample Value None
22
GT
Output: Get Tare Value None
22
GW
Output: Get Data String “Net/Gross/Status“ None
22
H n
Setpoints: Hysteresis for Setpoint S0 (H0) or S1 (H1) -99999...+99999 d 26
HT
Trigger function: Hold time for Violation of Setpoint Limit 0...65535 ms 32
ID
Device information: Identify Device None
14
IM
Digital output: Enable Output for External Control 0000...0011 25
IN
Digital input: Input Status None 25
IO
Digital output: Output Status 0000...0011 25
IS
Device information: Identify Device Status None
14
IV
Device information: Identify Firmware Version None
14
IZ
Calibration: Correction of System Zero None 17
MR
Calibration: Define Multi-interval (0) or Multi-range (1) 0 or 1 15
MT
Trigger function: Measuring Time for Averaging 0...500 ms 29
NR
Motion detection: No-motion Range 0...65535 d 18
NT
Motion detection: No-motion Time Period 0...65535 ms 18
OF
Output: Format of Data String Output 0…3 23
OP
Communication: Open Device xxx 0...255 27
PI
Download a saved image file to the LDU’s EEPROM None 28
RS
Device information: Read serial number None 14
RT
Scale function: Reset Tare and Switch to Gross Indication None
21
RW
Trigger function: Trigger Window for Re-trigger Function 0...65535 d 21, 31
RZ
Scale function: Reset Zero Point None
21
SA
Auto-transmit: Send Triggered Average Value automatically None 27, 30
SD
Trigger function: Start Delay 0...500 ms 29
SG
Auto-transmit: Send Gross Value continuously None
24