Siemens SIMATIC S5 ET 200U - Page 17

xvii
ET 200U Distributed I/O Station
EWA 4NEB 812 6087–02b
9-1 Scanning the Comparator Module 9-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-2 Scanning the Timer Module 9-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-3 Scanning the Simulator Module as a Digital Input 9-9. . . . . . . . . . . . . . . . . . . .
9-4 Setting the Input Voltage Range on the Counter Module (500 Hz) 9-15. . . . . .
9-5 Scanning the Counter Module (500 Hz) 9-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-6 Timing Diagram: Setting and Resetting an Output of the Counter Module
(500 Hz) 9-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-7 Switch Positions on the Operating Mode Switch of the Counter Module 9-20.
9-8 Pin Assignment of the 15–Pin Sub–D Female Connector
of the Counter Module 9-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-9 Connecting a Counting Pulse Sensor for 5 V Differential Signal to RS 422 9-22
9-10 Connecting a Counting Pulse Sensor for 24 V DC 9-22. . . . . . . . . . . . . . . . . . . .
9-11 Connecting a 5 V Position Sensor to RS 422A 9-23. . . . . . . . . . . . . . . . . . . . . . .
9-12 Connecting a 24 V DC Position Sensor 9-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-13 Signal Sequence for Up–Counting 9-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-14 Assignment Diagram for the Terminal Block 9-25. . . . . . . . . . . . . . . . . . . . . . . . .
9-15 Diagnostics Byte 9-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-16 Switching the Outputs Dependent on the Status of the Counter and the Enable
Input 9-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-17 Position of the Reference Point (SYNC Bit 0=1) within the Reference Signal
Range 9-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-18 Position of the Reference Point (SYNC Bit=1) after the Reference Signal 9-34
9-19 Position of the Reference Point (SYNC Bit=1) during a Reversal of
Direction before Reaching the Reference Pulse in a Positive Direction 9-34. .
9-20 Schematic of a Reference Point Approach Operation 9-35. . . . . . . . . . . . . . . . .
9-21 Enabling the Outputs – Reaching the Setpoints – Resetting the Outputs 9-36.
9-22 Approaching a Setpoint in Up–Count Direction 9-38. . . . . . . . . . . . . . . . . . . . . . .
9-23 Approaching a Setpoint in Down–Count Direction 9-38. . . . . . . . . . . . . . . . . . . .
9-24 Approaching a Setpoint in Up–Count Direction and Subsequent Reversal
of Direction 9-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-25 Requirement for New Setpoint 9-41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-26 Positioning with the IP 263 9-51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-27 Course of a Following Error during a Positioning Operation 9-61. . . . . . . . . . . .
9-28 Velocity Profile of IP 267 9-64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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