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You can activate the wire break detection with a parameterized measuring range of 4 to 20 mA
here.
• Parameterized measuring range from 4 to 20 mA:
–
–
• Parameterized measuring range from 0 to 20 mA:
Diagnostics wire break is preset by default. With currents < 0.4442 mA, a wire break is
detected and a diagnostic interrupt is triggered in the F-CPU.
If you do not need a channel, deactivate the channel. No wire break detection is then available.
5.4.13
Potential group
Definition
Specifies whether the I/O module is located on a terminal block with supply voltage infeed.
A potential group consists of a group of directly adjacent I/O modules within an ET 200SP HA
station that are supplied via a common supply voltage.
Description
A potential group is built up from left to right by using terminal blocks.
A new potential group starts on the left side with a light gray terminal block, via which the supply
voltage for the potential group is fed in.
The potential group is continued to the right with dark gray terminal blocks and ends when a
new potential group is built up to the right of it.
The potential group also ends if there is a black terminal block next to it. Black terminal blocks
are fed individually and cannot be included in potential groups.
You can find additional information on the configuration of the potential group in the system
manual SIMATIC; Distributed I/O System; ET 200SP HA.
5.4.14
Redundancy
Definition
You can configure two identical modules redundantly. To do so, plug both modules directly side
by side into the redundant terminal block specified below. You can find additional information
on mounting modules in an IO redundancy configuration in the ET 200SP HA System Manual,
section "Installing", "Installing terminal block".
In IO redundancy mode, the left module is the master and the right module is the slave.
F-AI 8xI 2-/4-wire HART HA
Equipment Manual, 09/2021, A5E50557845-AA
In the case of parameterized diagnostics wire break and currents < 3.6 mA, a wire break
is detected and a diagnostic interrupt is triggered in the F-CPU.
Without parameterized diagnostics wire break and with currents < 0.4444 mA, an
"underflow" is detected and a diagnostic interrupt is triggered in the F-CPU.
5.4 Explanation of the module/channel parameters
Parameters/address space
33
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