Siemens S7-300 Installation And Operating Manual page 248

Analog modules
9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART
Assignable parameters for application 5
Table 9- 19
Diagnostic interrupt
Behavior after channel
fault
HART_Gate
Interference frequency
suppression
Evaluation of the sensors 1oo2 evaluation*
Measuring range
F-wire break detection
Smoothing
Discrepancy time (ms)
Tolerance window (%)
absolute
Tolerance window (%)
relative
Standard value
HART function
HART repetitions
HART group diagnostics
* If you are evaluating sensors in your safety program (e.g., in
F_1oo2AI), configure "1oo1 evaluation".
Discrepancy analysis for fail-safe analog input modules
If you have configured 1oo2 evaluation, you can configure a discrepancy time and an
absolute and a relative tolerance window for each channel pair of the module. In addition,
configure the standard value (MIN = lower value / MAX = higher value) to be applied and
transferred to the F-CPU.
If the difference between the two redundant input channels of the channel pair exists longer
than the configured discrepancy time, an error is signaled and the fail-safe value (7FFF
transferred. In
program in place of 7FFF
SUBS_V of the channel driver will be provided in the PII.
248
Parameters for application 5 of SM 336; F-AI 6 x 0/4 ... 20 mA HART
Parameters Range of values in safety mode
Activated/deactivated
Passivate the entire
module/Passivate the channel
Off/On/Can be switched
50 Hz/60 Hz
4 to 20 mA, 0 to 20 mA
activated/deactivated
(in the 4 to 20 mA measuring range)
1 / 4 / 16 / 64 conversion cycles
0 to 30000
0.2 to 20
0.2 to 20
MAX/MIN
Activated/deactivated
0 to 255
Activated/deactivated
S7 Distributed Safety
. In
H
, the fail-safe value 0 is provided in the PII for the safety
S7 F/FH Systems
the fail-safe value assigned at the input
Installation and Operating Manual, 01/2010, A5E00085586-10
Type Effective range
Static
Static
Static
Static
Static Channel
Static Channel
Static Channel
Static Channel
Static Channel
Static Channel
Static Channel
Static Channel
Static Channel
Static Channel
Static Channel
S7 F Systems
using F-block
Fail-safe signal modules
Module
Module
Module
Module
) is
H