REXROTH IndraDrive Fc FCS01, Руководство по эксплуатации

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15-2
Control Communication - Field Busses and Protocols Rexroth IndraDrive FCS01.1
DOK-INDRV*--FCS01*****-IB01_EN-P
Configuration files
The required configuration files:
for Profibus, the device master file (*.gsd), and for DeviceNet, CanOpen
the Electronic Data Sheet (*.eds) are to be found under
www.boschrexroth.com/indradrive.
Abbreviations used
PIDV Parameter ID value
PCD: Process data
PPO: Parameter process data object
PID: Parameter ID
IND Index
PV: Parameter value
CTW: Control word
STW: Status word
SP: Setpoint value
AV: Actual value
PNU: Parameter numbers
JID/RID: Job ID, response ID
SPM: Spontaneous message
15.2 Profibus DP
Use and Application
Profibus enables a great variety of automation devices to exchange data.
PLC, PC, operating and monitoring units can communicate with each
other in bit-serial fashion through one bus. The speed-optimized Profibus
variant PROFIBUS DP is primarily used in the field of sensor and actuator
communication where short system reactions are vital. PROFIBUS DP is
suitable as a replacement for the cost-intensive parallel signal
transmission with 24V and the transmission of measured values.
Profibus Protocol
The protocol is described in the following according to the OSI 7-layer
reference model.
Transmission layer
In layer 2 of the ISO/OSI model, the following is to be found among other
features:
•
the general format of telegrams for data transmission
•
the mechanisms of bus access
•
the storing mechanisms
•
the time periods to be observed
•
and the available transmission services.
The user does not have much influence on the dimensioning of layer 2, as
almost all services are comprised in the available PROFIBUS ASICs.