Components Of A Positioning Controller - Siemens SIMATIC S7-300 Manual

Product Summary
Components The most important components and their functions are listed in Table 1-2.
Table 1-2
DIN rail
FM 354
CPU
Power supply (PS)
Signal modules (SM)
Interface module (IM)
Programming device (PG)
Operator panel (OP)
Power section
Motor
Encoders
Configuration
package
1-6

Components of a positioning controller

Component
... the module mounting rack for the S7-300.
... the positioning module. It is controlled by the
S7-300 CPU.
... executes the user program; powers the S7-300 back-
plane bus at 5 V; and communicates with the program-
ming device and the operator panel via the MPI inter-
face.
... converts line voltage (120/230 V AC) to 24 V DC
operating voltage to power the S7-300.
... adapts various process-signal levels to the S7-300
... connects the individual cells of an S7-300 with
one another (applies to multi-tier configuration; see
Figure 1-1).
... configures, parameterizes, programs and tests the
S7-300 and the FM 354.
... the interface to the machine. It serves for operation
and monitoring. It is not an absolute prerequisite for
operation of an FM 354.
... actuates the motor.
... drives the axis.
... the path measurement system that detects the current
position of the axis. By comparing the actual position
with the applicable setpoint position, the FM 354 im-
mediately detects discrepancies and attempts to com-
pensate for them.
... includes:
A manual
3 1/2" diskette with:
– Function-block package FCs.
– The "Parameterize FM 354" parameterization
tool.
– Preconfigured interface for COROS devices
OP 07 and OP 17.
Function
FM 354 Servo Drive Positioning Module