Balluff BTL5-T110 Series Technical Description page 49

BTL5-T110...
Configuration and Profibus Connection -
Transducer Class 3/4
Properties
The BTL5-T110... Micropulse
transducer makes it possible to
configure the BTL in a Profibus
system:
➥ ➥ ➥ ➥ ➥ Section 7
Parameterizing data
In parameterizing a distinction is
made between encoder-specific
and Profibus-specific parameters.
Programmable BTL parameters:
- Number of magnets
- Position and velocity resolution
- Set switchpoints/cams for
position and velocity
- Specify working range
- Set zero point
Profibus communication
parameters:
- Cycle times
- Isochronic settings
Bus parameters:
- Setting the transmission speed
(baud rate)
- Setting the node number
Definitions
ASIC
Application Specific Integrated
Circuit. For PROFIBUS a number of
ASICs have become available
which contain some or all of the
PROFIBUS protocol. A PROFIBUS
interface can then be created
using just a few additional
components.
Baud rate
Data transmission speed on the
Profibus.
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Table of Contents
1 System description of the BTL5-T110-... on Profibus ................... 4
1.1 Profibus technology .............................................................................. 4
1.2 Overview of Profibus DP ...................................................................... 4
1.3 Cyclic process data ............................................................................. 4
1.4 Acyclic parameterizing data ................................................................. 4
2 System start ........................................................................................ 5
2.1 Power_on .............................................................................................. 5
2.2 Wait_Prm (Wait for parameterizing) ...................................................... 5
2.3 Wait_Cfg (Wait for configuration) .......................................................... 5
2.4 Data_Exch (Data exchange) ................................................................. 5
3 Estimating transmission time ........................................................... 6
3.1 Permissible cable lengths .................................................................... 6
3.2 Approximate message/bus cycle calculation with cyclic
Data exchange ...................................................................................... 6
4 Transmitting data in Data_Exchange ............................................... 7
4.1 Data format for position and velocity ................................................ 10
5 Node configuration ........................................................................... 11
5.1 Number of magnets ............................................................................ 11
5.2 General settings .................................................................................. 11
5.3 Position settings ................................................................................. 12
5.4 Velocity settings .................................................................................. 16
6 Startup ............................................................................................... 17
6.1 Sources ............................................................................................... 17
6.2 Programming cyclic transmission (DP-V0) ......................................... 17
6.3 Programming acyclic services (DP-V1) .............................................. 20
6.4 Programming isochronic mode (DP-V2) ............................................. 31
6.5 Slave-to-slave (lateral) communication .............................................. 36
6.6 General startup notes ......................................................................... 36
6.7 DP-V2 terms and abbreviations ......................................................... 37
7 Data .................................................................................................... 38
7.1 Parameter data ................................................................................... 38
7.2 Diagnostic data ................................................................................... 42
7.3 Acyclic data ........................................................................................ 45
DP
Decentral Periphery. PROFIBUS
protocol featuring fast cyclic data
exchange.
DP-V0
Cyclic data communication
DP-V1
The Profibus DP expansion DP-V1
offers the cyclic data communica-
tion of DP-V0 together with acyclic
communication.
DP-V2
The Profibus DP expansion DP-V2
offers the acyclic data communi-
cation of DP-V1 together with the
possibility of clock synchronization
and lateral communication.
DU
Data Unit (net data to be sent,
value range 1...244 bytes/
telegram)