Manual

LDU 68.1 & 68.2 Technical Manual, Rev. 12 January 2010
Page 3 of 28
8.7.
 Auto–transmit Commands – SG, SN, SF, SW, SA ................................................................................ 20
8.7.1. SG Send Gross Value continuously ............................................................................................................... 20
8.7.2. SN Send Net Value continuously .................................................................................................................. 20
8.7.3. SF Send Filtered Value continuously (Display Mode only) ............................................................................ 20
8.7.4. SW Send Data String “Net, Gross and Status“ continuously .......................................................................... 20
8.7.5. SA Send Triggered Average Value automatically ......................................................................................... 20
8.8. Commands for External I/O Control – IN, IO, IM ................................................................................... 21
8.8.1. IN Read the Status of the Input Channels ..................................................................................................... 21
8.8.2. IO Read / Set the Status of the Output Channels .......................................................................................... 21
8.8.3. IM Control of the logic outputs by the host application .................................................................................. 21
8.9. Setpoint Output Commands – Sn, Hn, An ............................................................................................. 22
8.9.1. S0 / S1 Setpoint Value ................................................................................................................................... 22
8.9.2. H0 / H1 Setpoint Hysteresis and Switching Action ......................................................................................... 22
8.9.3. A0 / A1 Allocation of Gros or Net Value ......................................................................................................... 22
8.10. Communication Setup Commands – AD, BR, CL, DX, TD, OP ......................................................... 23
8.10.1. AD Device Address ........................................................................................................................................ 23
8.10.2. BR Baud Rate ................................................................................................................................................ 23
8.10.3. CL Close Device Address n .......................................................................................................................... 23
8.10.4. DX Half-duplex or Full-duplex ....................................................................................................................... 23
8.10.5. TD Transmission Delay ................................................................................................................................. 23
8.10.6. OP Open Device ............................................................................................................................................ 23
8.11. Save Calibration and Setup Data Commands – CS, WP, SS, GI, PI ................................................ 24
8.11.1. WP Save the Setup Parameters .................................................................................................................... 24
8.11.2. SS Schaltpunkt-Parameter sichern ............................................................................................................... 24
8.11.3. GI Save an Image File from the EEPROM .................................................................................................... 24
8.11.4. PI Download an Image File to the EEPROM ................................................................................................. 24
8.12. Trigger Commands – SD, MT, GA, TE, TR, TL, SA ........................................................................... 25
8.12.1. SD Start Delay Time...................................................................................................................................... 25
8.12.2. MT Measuring Time ....................................................................................................................................... 25
8.12.3. GA Get Triggered Average Value .................................................................................................................. 25
8.12.4. TE Trigger Edge ............................................................................................................................................ 25
8.12.5. TR Software Trigger ...................................................................................................................................... 25
8.12.6. TL Trigger Level ............................................................................................................................................ 26
8.12.7. SA Send Triggered Average Value automatically ......................................................................................... 26
9. Use in “Approved” Applications (LDU 68.1 only) ................................................................................ 27
10. Updates – Firmware Download .............................................................................................................. 28