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TAC Xenta Server – Gateway, Technical Manual B Protocols
Schneider Electric Buildings AB, June 2011 161 (184)
04-00124-06-en
The entered priority is sent with all object value write requests. If
the target object is not commendable then the priority is ignored
and the last written value is applied. However, if the target object
is commendable then the highest priority written value is applied,
while lower priority values are ignored.
Interface Status Signals
The BACnet PTP interface driver generates several network specific
communication status signals, as described below.
• ComsFail – Flags a complete communications failure. Activated
only if communications has failed to the target half-router.
• ObjsFail – Flags if communications has failed to one or more
objects on the target BACnet network. Normally objects fail
because an incorrect device address or object instance number has
been entered. However, output objects may also fail as a result of
attempting to write an out-of-range value to it.
• online – Flags ONLINE during normal network communications,
and will change to OFFLINE only if communication has failed to
one or more objects on the target BACnet network. An OFFLINE
condition normally indicates incorrect communication property
settings, or faulty wiring of the network between the Xenta 913
and one or more objects on the target BACnet network.
- TAC Vista 1
- Contents 5
- REFERENCE 6
- Index 181 8
- INTRODUCTION 9
- 1 About this Manual 11
- 1.2 Structure 13
- 1.3 Typographic Conventions 14
- 1.4 Prerequisites 14
- 1.5 New in This Edition 14
- 1.6 Related Documents 15
- GETTING STARTED 17
- 2 Planning the Project 19
- 2.2 The Target System 20
- Important 21
- Fig. 2.2: The ACME building 22
- 2.4.1 Units 23
- 2.4.2 Devices 24
- TAC Vista Device Structure 25
- TAC Xenta 913 25
- Energy Meter PM710 25
- 2.5 Developing the Project 26
- 2.6.1 Folder Structure 27
- 3 Creating a Project 29
- 3.2 Creating a Project 30
- 11 Click OK 32
- 3.4 Saving the Project 34
- To create a device template 38
- To add signals for a device 40
- Fig. 5.1: 43
- To rename the root folder 44
- 5.1.2 Adding a Folder 45
- 6 Visualizing Signals 47
- 6.2 Adding a Signal 48
- 6.3 Adding a Values Page 51
- To add more values pages 53
- LonWorks Network 55
- 8 Connecting to the LonWorks 59
- Unrecognized Units 62
- To add a connection object 66
- Connection Object 67
- PM710_Signals RTU4_Signals 67
- 9 Creating SNVTs 73
- 9 Click OK 75
- 10 Using Signals 81
- 10.1.2 Output SNVTs 83
- An example of an output SNVT 84
- 10.1.3 Input SNVTs 85
- An example of an input SNVT 86
- 10.2 Connection Objects 87
- 10.3 Multi-Connection Objects 88
- 10.3.1 Validating the Signals 89
- Communication 91
- 11.3 The Device Templates 93
- 11.9 Enumerations 98
- 12 Working with Third-party 99
- Communication Diagnostics 99
- 04-00124-06-en 100
- Driver Selection 101
- Verbosity 102
- Output log file 103
- APPENDIX 107
- A.1 General 109
- A.2 Basic TCP/IP Settings 112
- What is an HTTP Session? 114
- Rules of Thumb 114
- B Protocols 117
- B.1.1 Modbus Master Networks 118
- B.1.2 Modbus Master Interface 119
- B.1.3 Modbus Slave Device 120
- Device Status Signal 121
- B.1.4 Modbus I/O Signals 122
- Fixed Address Blocks 123
- Functions 123
- Description 123
- B.2 Modbus Serial Line Slave 127
- B.2.1 Modbus Slave Networks 128
- B.2.2 Modbus Slave Devices 129
- B.2.3 Pseudo Slave Devices 130
- B.2.4 Modbus I/O Signals 132
- Format Functions Description 133
- B.3 Modbus TCP Client 136
- B.3.1 Modbus TCP Networks 137
- B.3.2 Modbus TCP Interface 138
- B.3.3 Modbus Slave Devices 139
- B.3.4 Modbus I/O Signals 140
- Fig. B.4: BACnet IP 145
- B.4.1 BACnet IP Networks 146
- B.4.2 BACnet IP Interface 147
- Interface Status Signals 148
- BACnet Target Devices 148
- Device Template 149
- Device Properties 149
- B.5.1 BACnet MS/TP Networks 152
- B.5.2 BACnet MS/TP Interface 153
- B.5.3 BACnet Target Devices 155
- Fig. B.6: BACnet PTP 158
- B.6.1 BACnet PTP Networks 159
- B.6.2 BACnet PTP Interface 160
- B.6.3 BACnet Target Devices 162
- B.7 M-Bus Metering 165
- B.7.1 M-Bus Metering Networks 166
- Interface Properties 167
- B.7.3 M-Bus Meters 169
- B.7.4 M-Bus I/O Signals 171
- Clipsal C-Bus 174
- B.8.1 C-Bus Lighting Networks 175
- B.8.4 C-Bus I/O Signals 178
- Last Manual Page 184
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