Connection To Superposed Systems; General Information And Bacs Functions; Reading Ebus-Specific; Data - Siemens LMV51 Series Basic Documentation

General information
and BACS functions

Reading eBus-specific

data

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7.2.2 Connection to superposed systems

(Refer to «Port for BACS»)
Communication with a BACS is accomplished via a data link and an external bus inter-
face with galvanic separation. That interface is to be connected to the COM2 port of the
AZL5... . The interface can be used for eBus or Modbus, depending on the configuration
of the AZL5...
Modbus
With this bus protocol, the AZL5... operates as a slave. The transmission mode used is
RTU (Remote Terminal Unit). For detailed information, refer to the document "Modbus
AZL5...".
Standardized interfacing software is available on request.
Example: Interconnection of Siemens Simatic S7 and LMV5... system
Use in industrial applications
Management level
Automation level
Sub station
Process control
Field level
Burner management system
Burner control, boiler control
eBus
The following functions can be provided:
•
Reading parameters and operating states
•
Hours run
•
Reading of start counter
•
Fuel consumption (LMV51.2..., LMV52...)
•
Operating display
•
Current type of fuel
•
Phase number
•
Input states (if available)
•
Output states including alarms (if available)
•
Actual value of temperature or pressure
•
Temperature or pressure setpoint
•
Current output
•
Final temperature or pressure setpoint
•
Contents of lockout and error storages
•
Identification (device identification, eBus software version)
•
Existence inquiry
•
Querying supported commands
•
Fault status message
Basic Documentation LMV5...
7 Display and operating unit AZL5...
DP/MODBus converter
CAN bus
LMV5... system
7550p20e/1003
CC1P7550en
13.08.2004