Laurel-electronics Custom ASCII Protocol For Laureate Series 2 Digita Manuel d'utilisateur

1 Custom ASCII Protocol SERIAL COMMUNICATIONS MANUAL For Laureate Series 2 Digital Panel Meters, Counters, Timers & L-Series Transmitters

10 Serial Signal Duplex Jumpers Termination Resistor* Full None E6 a = Transmit E6 c = Receive RS485 Half E6 b + d** E6 c RS232 Full None

11 5. PROGRAMMING YOUR SERIAL DEVICE OVERVIEW Digital panel meters, counters, timers and transmitters are easily programmed via their serial por

12 6. FRONT PANEL SETUP, SERIAL COMMUNICATIONS 6.1 FRONT PANEL SETUP, DIGITAL PANEL METERS & SCALE METER ONLY Press Menu Select Key Pr

13 Press Menu Select Key Press Digit Select Key Press Value Select Key 00000U RS485 half or full duplex 0 Full duplex 1 Half duplex 0

14 6.2 FRONT PANEL SETUP, COUNTERS & TIMERS ONLY Press Menu Select Key Press Digit Select Key Press Value Select Key ___000 Output f

15 Press Menu Select Key Press Digit Select Key Press Value Select Key _00000U RTS mode for RS232 0 Normal non-latching RTS 1 Single

16 7. CUSTOM ASCII COMMUNICATION PROTOCOL 7.1 SERIAL COMMUNICATION FORMAT The Custom ASCII serial communication format for RS232, RS485 and

17 The Counter and Scale Meter are capable of supplying more than 1 measurement value (or “Item”) with each reading, as selected in

18 8. CONTINUOUS MODE 8.1 OVERVIEW In the Continuous Operating Mode, measurements are continuously transmitted by the meter or transmitter in

19 Baud Rate Time 1 Item Min Gate Time 2 Items Min Gate Time 3 Items Min Gate Time 4 Items Min Gate 300 600 1200 2400 4800 9600 19200 0.37s 0.18s

2 1. TABLE OF CONTENTS 1. TABLE OF CONTENTS ...

20 9. COMMAND MODE 9.1 OVERVIEW In the Command Mode, the device does not send any data automatically, but responds to com-mands received from

21 Meter # Meter SER 2 Digit 5(6) Serial Comm Address Code Meter # Meter SER 2 Digit 5(6) Serial Comm Address Code 1 2 3 4 5 6 7 8 9 10 11 12 13

22 REQUEST COUNTER VALUES All active items 1, 2 or 3 *1B0 Item 1 *1B1 Item 2 *1B2 Item 3 *1B3 Pe

23 CHARACTER 3: Command character: G Read bytes from RAM Memory F Write bytes to RAM Memory (DPM and Scale meter only) R Rea

24 The number of bytes n consists of a single code character representing values from 1 to 30 as shown above under CHARACTER 4. The most significa

25 A total of 11 characters plus a CR must be included and sent as ASCII characters. Those in quotes below are included as shown. The oth

26 MODE 2: DPM with Signal Conditioner Card and in Remote Display Mode SETUP (left digit) = 1 Remote Display mode The baud rate must be set the

27 Remote Display Only – No Normal Readings Addressable Commands 6 Addressable remote display 7 Single value remote display 8 1st value of va

28 Mode 7 is not addressable, and data representing a value to be displayed is received in a point-to-point connection. In addition to being displ

29 S = Sign of value, space (or +) for positive, - for negative value. Sign is optional in display modes 0-7, required in 8-11. D = Digit

3 2. INTRODUCTION, CUSTOM ASCII SERIAL PROTOCOL The Custom ASCII Protocol is a simple serial communications protocol which is optimized for use

30 10. APPENDIX A: DPM MEMORY ADDRESSES AND DATA DEFINITIONS 10.1 DPM 1-BYTE RAM MEMORY DATA (L) = Lower memory, (U) = Upper memory. The

31 69 (L) Serial Cnfg3 Bit 7 6 5 4 3 2 1 0 0 0 0 Send Reading 0 0 1 Send Peak 0 1 0 Send Va

32 32 (L) Serial Cnfg2 Bit 7 6 5 4 3 2 1 0 X X X X X Binary Custom ASCII addr. 0-31 0 Continuous mode

33 2F (L) Filter Bit 7 6 5 4 3 2 1 0 0 0 0 0 Auto Filter 0 0 0 1 Batch (16 samples) filter

34 09 (U) Setup1* * Cannot be written to RAM Bit 7 6 5 4 3 2 1 0 0 0 4-1/2 digit display (0.1° temp.) 0

35 0B (U) Alarm Confg2 Bit 7 6 5 4 3 2 1 0 Alarm Trigger Delay 60 Hz 50Hz 0 0 0 0.018s 0.021

36 00 (U) Serial Cnfg4 Bit 7 6 5 4 3 2 1 0 Serial Protocol 0 0 No Parity 0 1 Odd Parity 1 0 Even Parity 0 0 Custo

37 10.2 DPM 3-BYTE RAM MEMORY DATA Format for all items except Scale Factor: MS byte Mid byte LS byte XX

38 10.4 DPM NONVOLATILE MEMORY ADDRESSES (2 bytes/address) Hex Addr MS Byte LS Byte Stored As 75 74 73 72 71 70 6F 6E 6D 36 35 18 17 16 15 14

39 11. APPENDIX B: COUNTER / TIMER MEMORY ADDRESSES AND DATA DEFINITIONS 11.1 COUNTER / TIMER 1-BYTE RAM MEMORY DATA (L) = Lower m

4 USB/RS485232USBRJ11a b c dRS485bacdeRJ11RJ11fRS485bacdeRJ11RJ11fComputerwith USB portUSB connection of multiple meters to a PC can be via a USB

40 3D (L) Analog Setup Bit 7 6 5 4 3 2 1 0 Analog Output Source 0 0 Filtered Item 0 1 Item 1

41 34 (L) Configuration Bit 7 6 5 4 3 2 1 0 0 Enable cutoff of VF totalizing 1 Totalize all VF value

42 00 U Serial Cnfg 4 Bit 7 6 5 4 3 2 1 0 Serial Protocol 1 0 No Parity 2 1 Odd Parity 3 0 Even Parity 0 0 Custom

43 0 1 0 0.2 sec 0 1 1 0.4 sec 1 0 0 0.8 sec 1 0 1 1.6 sec

44 Dual Channel Signal Conditioner Rate Period Total Time Interval 41 A to B Stopwatch 50 A to A 51 A to B 52 1/A to A 53 1/A to B Phase 00

45 0D U Alarm Cnfg 4 Same as for DPM, page 35 0C U Alarm Cnfg 3 Same as for DPM, page 35 0A U Alarm Cnfg 1 Bit 7 6 5 4 3 2 1

46 15 (U) 12 (U) 14 11 13 10 Setpoint 4 Setpoint 3 A7 (L) A1 (L) A6 A0 A5 9F Scale2 Scale1 Values stored as sign (MS bit) + magnitude (all other b

47 29 28 27 26 25 24 23 22 21 20 1F 1E 1D 1C 1B 1A 19 18 17 16 15 14 13 12 11 10 0F 0E 0D 0C 0B 0A 09 08 07 06 05 04 03 02 01 00 Cutoff Byte 2 Rec

48 12. APPENDIX C: WEIGHT METER MEMORY ADDRESSES AND DATA DEFINITIONS 12.1 WEIGHT METER 1-BYTE RAM MEMORY DATA (L) = Lower memory,

49 6B (L) Config Bit 7 6 5 4 3 2 1 0 0 Enable Adaptive Filtering 1 Disable Adaptive Filtering

5 3. SERIAL CONNECTION EXAMPLES

50 0 1 1 1 Moving Average 2.27 2.72 1 0 0 0 Moving Average 4.53 5.44 1 0 0 1 Moving Average 9.0

51 1 1 Relay1 Off when Al1 active, Relay2 Off when Al2 active 0B (U) Alarm Confg2 Bit 7 6 5 4 3 2 1 0 Alarm Trigger Delay

52 0 0 0 300 baud 0 0 1 600 baud 0 1 0 1200 baud 0 1 1 2400 baud 1 0 0

53 0 1 3 s Modbus ASCII Gap Timeout 1 0 5 s Modbus ASCII Gap Timeout 1 1 10 s Modbus ASCII Gap Tim

54 12.3 WEIGHT METER 3-BYTE RAM MEMORY DATA (3 Bytes / Item) All numeric values except scale factor utilize a 2’s complement, 3-byte Hex format

55 Hex Address MS Byte LS Byte 1D 1C 1B 18 17 16 15 14 13 12 11 10 0F 0E 0D 0C 0B 0A 09 08 07 06 05 04 03 02 01 00 35 36 Tare3 Tare1 Serial Cnfg

56 14. WARRANTY Laurel Electronics Inc. warrants its products against defects in materials or workmanship for a period of one year from the date

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7 4. JUMPER SETTINGS & FIELD WIRING 1. SAFETY WARNINGS Digital panel meters, counters, timers and transmitters may be powered

8 Ethernet-to-RS485 Device Converter Board & USB-to-RS485 Device Converter Board Full Duplex Operation No jumpers for short cable runs. Add b

9 4. TRANSMITTER CONNECTOR WIRING SignalconditionerboardP3 Solidstate relaysP1 PowerinputP6 Signalinput &excitationoutputP2 Serialdata I/O