Siemens S7-300 - Page 98

Digital modules
8.3 SM 326; DI 24 x DC 24V
Fail-safe signal modules
98 Installation and Operating Manual, 01/2010, A5E00085586-10
Assignable parameters for application 6
Table 8- 7 Parameters for application 6 of SM 326; DI 24 x DC 24V
Parameters Range of values in safety mode Type Effective range
"Parameters" tab
Mode of operation Safety mode Static Module
F parameter:
F monitoring time 10 ms to 10000 ms Static Module
Module parameters:
Diagnostic interrupt activated/deactivated Static Module
Module parameters for a power supply group:
Internal sensor supply
of the module
activated/deactivated Static Power supply group
Short-circuit test activated/deactivated * (only if "Sensor
Supply via Module" is activated)
Static Power supply group
For single channels or channel pairs:
activated activated/deactivated Static Channel pair
Evaluation of the
sensors
1oo2 evaluation Static Channel pair
Type of sensor
interconnection
 Two-channel, equivalent
 Two-channel, nonequivalent
 Single-channel
Static Channel pair
Discrepancy behavior (only two-channel)
 "Provide last valid value"
 Provide 0 value
Static Channel pair
Discrepancy time 10 ms to 30000 ms (only for two-
channel)
Static Channel pair
"Redundancy" tab
Redundancy 2 modules Static Module
Redundant module (selection of an existing additional
module of the same type)
Static redundant module
pair
Discrepancy time 10 ms to 30000 ms Static redundant module
pair
* Vs does not clock, if the short-circuit test is deactivated.