Wiring
4.4 Module status after power is switched on
Counter module FM 450-1
Manual, 02/2014, A5E03648739-02
39
4.4
Module status after power is switched on
Characteristics
After the power supply has been switched on and before any data have been transmitted,
the module status is as follows:
●
Counter inputs with default setting for 5 V differential signals, track B not inverted; single
evaluation (refer to the section "Signal evaluation (Page 100)")
●
0 to +32 bit counting range
●
Counter status zero
●
Counter setting with digital input 1I2 or 2I2 (and zero mark) disabled
●
Input delay for the digital inputs: typically 1
μs
(max. frequency: 200 kHz, minimum pulse width: 2.5
μs)
●
Input delay for 24-V count inputs: typically 1
μs
(max. frequency: 200 kHz, minimum pulse width: 2.5
μs)
●
Outputs 1Q0 and 1Q1 or 2Q0 and 2Q1 switched off
●
Pulse duration = 0
●
No Hardware interrupts set
●
"Continuous counting" mode set
●
Gate function switched off (i.e. gate open)
●
Status messages are updated
This setting corresponds to the default setting of the module.
RESET status
This module status (default setting) is also called RESET status.
Summary of Contents for simatic s7-400 FM 450-1
Page 8: ...Table of contents Counter module FM 450 1 8 Manual 02 2014 A5E03648739 02 ...
Page 120: ...Spare parts Counter module FM 450 1 120 Manual 02 2014 A5E03648739 02 ...
Page 122: ...References Counter module FM 450 1 122 Manual 02 2014 A5E03648739 02 ...
Page 126: ...Glossary Counter module FM 450 1 126 Manual 02 2014 A5E03648739 02 ...
Page 130: ...Index Counter module FM 450 1 130 Manual 02 2014 A5E03648739 02 ...