BS EN 13757-2:2018
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Communication systems for meters – Wired M-Bus communication
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 32 |
This draft European standard is applicable to the physical and link layer parameters of baseband communication over twisted pair (M Bus) for meter communication systems. It is especially applicable to thermal energy meters, heat cost allocators, water meters and gas meters. NOTE It is usable also for other meters (like electricity meters) and for sensors and actuators. For generic descriptions concerning communication systems for meters and remote reading of meters see EN 13757-1.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 6 | European foreword |
| 7 | Introduction |
| 8 | 1 Scope 2 Normative references 3 Terms and definitions 4 Physical layer specifications 4.1 General |
| 9 | 4.2 Electrical requirements slave 4.2.1 Master to slave bus voltages |
| 10 | 4.2.2 Slave bus current and multiple unit loads |
| 11 | 4.2.3 Dynamic requirements 4.3 Electrical requirements master 4.3.1 Parameters |
| 12 | 4.3.2 Function types 4.3.3 Requirements |
| 14 | 4.4 Electrical requirements mini-master 4.4.1 Definition of a mini-master 4.4.2 Requirements 4.5 Repeaters 4.5.1 General requirements 4.5.2 Additional requirements |
| 15 | 4.6 Burst and surge requirements 4.6.1 General 4.6.2 Requirements for devices intended for domestic use 4.6.3 Requirements for devices intended for industrial use 5 Link Layer (master and slave) 5.1 General 5.2 Baud rate 5.2.1 Required baud rate 5.2.2 Recommended additional baud rates 5.2.3 Special baud rates 5.2.4 Baud rate after reset 5.2.5 Baud rate set |
| 16 | 5.2.6 Auto speed mode 5.2.7 Transmit baud rate accuracy 5.3 Bit position 5.3.1 Synchronous transmit bit distortion 5.3.2 Gross transmit bit distortion and minimum signal element 5.3.3 Character interval requirement 5.3.4 Practical receive margin and character interval requirement 5.3.5 Minimum signal element 5.4 Byte format |
| 17 | 5.5 Block format 5.5.1 Transmission interbyte gaps 5.5.2 Reception interbyte gaps 5.5.3 Idle time between datagrams 5.6 Datagram abort on collision 5.7 Datagram description 5.7.1 General 5.7.2 Data integrity 5.7.3 Datagram structure |
| 18 | 5.7.4 Datagram coding 5.7.5 Addressing |
| 19 | 5.7.6 Link layer time schedule 5.7.7 Datagram sequencing 6 Tables and figures |
| 24 | Annex A (informative) Schematic implementation of slave |
| 25 | Annex B (informative) Protection against mains voltages |
| 26 | Annex C (informative) Slave powering options |
| 27 | Annex D (informative) Slave collision detect |
| 28 | Annex E (informative) Wire installation |
| 30 | Annex F (informative) Protocol examples |
| 31 | Bibliography |
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