Bronkhorst RS232 interface - Manual (Page 3)

BRONKHORST ®
Page 3 RS232 interface 9.17.027
Table of contents
1 GENERAL PRODUCT INFORMATION .................................................................................................... 4
1.1 I NTRODUCTION ............................................................................................................................................. 4
1.2 M ULTIBUS TYPES ........................................................................................................................................... 4
1.3 R EFERENCES TO OTHER APPLICABLE DOCUMENTS ................................................................................................... 5
1.3.1 Manuals and user guides: ........................................................................................................................ 5
1.3.2 Technical Drawings: ................................................................................................................................. 5
1.3.3 Software tooling: ..................................................................................................................................... 5
1.4 S HORT FORM START ‐ UP ................................................................................................................................... 6
2 INTERFACES ........................................................................................................................................ 7
2.1 RS232/FLOW‐BUS INTERFACE ....................................................................................................................... 7
2.1.1 D‐connector for RS232 ............................................................................................................................. 7
2.2 RS232 ON MULTIBUS INSTRUMENT .................................................................................................................... 8
2.2.1 Applications, e.g. EL‐FLOW ...................................................................................................................... 8
2.2.2 Facilities ................................................................................................................................................... 9
2.2.3 Baudrates multibus RS232: ...................................................................................................................... 9
3 FLOW‐BUS PROTOCOL DESCRIPTION ................................................................................................ 10
3.1 G ENERAL ................................................................................................................................................... 10
3.2 I NITIALISATION OF LOCAL HOST INTERFACES ON M ULTIBUS INSTRUMENTS .................................................................. 10
3.3 I NTERFACE STRUCTURE .................................................................................................................................. 11
3.3.1 Basic datalink format ............................................................................................................................. 11
3.3.2 ASCII table ............................................................................................................................................. 11
3.3.3 RS232 ASCII protocol .............................................................................................................................. 12
3.3.4 Enhanced binary protocol ...................................................................................................................... 13
3.4 C OMMUNICATION MESSAGES ......................................................................................................................... 14
3.4.1 Communication commands ................................................................................................................... 14
3.4.2 Parameter types .................................................................................................................................... 15
3.5 C HAINING .................................................................................................................................................. 15
3.6 S TATUS MESSAGE ........................................................................................................................................ 16
3.7 S END PARAMETERS ...................................................................................................................................... 17
3.8 R EQUEST PARAMETER ................................................................................................................................... 17
3.9 I NITIALISING RS232/FLOW‐BUS INTERFACE .................................................................................................... 19
3.10 E XAMPLES ................................................................................................................................................. 20
3.10.1 Sending setpoint .................................................................................................................................... 20
3.10.2 Sending chained parameters .................................................................................................................. 21
3.10.3 Request setpoint .................................................................................................................................... 22
3.10.4 Request chained parameters ................................................................................................................. 23
3.10.5 Request measure ................................................................................................................................... 25
3.10.6 Request counter value ........................................................................................................................... 26
4 DUAL INTERFACE OPERATION .......................................................................................................... 27
5 PARAMETER INFORMATION ............................................................................................................. 28
6 TROUBLESHOOTING ......................................................................................................................... 30
6.1 LED INDICATIONS ........................................................................................................................................ 30
6.2 T ROUBLESHOOTING HINTS AND TIPS ................................................................................................................. 30
7 SERVICE ............................................................................................................................................ 31
8 APPENDIX ........................................................................................................................................ 32
8.1 P ARAMETER VALUES TABLE ............................................................................................................................ 32
8.2 P ARAMETER PROPERTIES TABLE ....................................................................................................................... 32