WAGO 8FDI 24V PROFIsafe 750-662/000-004 Manual page 123

WAGO I/O System
750-662/000-004 8FDI 24V PROFIsafe
Short Circuit Test
The short circuit test is used to detect a short circuit between two live lines. See
also "Cross Circuit Test."
T
T(SR) (Safety Response Time)
Symbol for the safety response time in case of error (see also "Safety Response
Time").
TCI (Tool Calling Interface)
TCI (Tool Calling Interface) is an interface specified by the PROFIBUS User
Organization (PNO), which defines how device-specific or manufacturer-specific
parameterization tools are called from a configuration environment. The features
of the interface are described in conformance classes. Generally, the
communication options of the specific software tools are determined with the
devices.
Test Mode
The test mode is intended for commissioning and configuring the F I/O module
with the iPar server and is initiated by the F I/O module upon receiving the
F parameter F_iPar_CRC = 0. This eliminates the check of F_iPar_CRC against
iPar_CRC. All digital inputs are passivated the test mode. According to the
PROFIsafe specification, test mode is indicated visually by the parameterization
LED (LED H) on the F I/O module flashing green at 2 Hz.
Test Pulse Duration
The duration of the test pulse for the short circuit test is set with the Test Pulse
Duration parameter; the correct test pulse duration setting depends on the
capacitance of the input circuitry, which is influenced by the type of sensor
connected and the cable length.
U
User Acknowledgement (Operator Acknowledge (OA))
Prompt for user acknowledgment (operator acknowledgment) that causes start-
up of a machine or system. User acknowledgment is necessary for the F I/O
module – for example after errors are detected by the F I/O module and
eliminated by maintenance personnel – and is initiated from the control level.
V
Valence Analysis
The valence analysis is the analysis of two input signals according to either the
equivalence rule (equality) or the antivalence rule (difference).
Version 1.0.0, valid from HW/SW Version 01/01
Glossary 123
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