Omron DEVICENET SAFETY - 04-2005 Operation Manual page 24

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Item
Allocation
patterns of
remote I/O
communications
Smart slave
functions
Error history
24
Description
DST1-ID12 For remote I/O communications, the user can select and allocate the
following I/O data, for which there are 15 patterns when combined:
SL-1
• I/O data for control
• Status data
• General status data
Refer to 3-2 Remote I/O Allocations (page 46).
DST1-MD16 For remote I/O communications, the user can select and allocate the
following I/O data, for which there are 16 patterns when combined:
SL-1
• I/O data for control
• Status data
• General status data
• Output monitors
Refer to 3-2 Remote I/O Allocations (page 46).
DST1- For remote I/O communications, the user can select and allocate the
MRD08SL-1 following I/O data, for which there are 16 patterns when combined:
• I/O data for control
• Status data
• General status data
• Output monitors
Refer to 3-2 Remote I/O Allocations (page 46).
Network power The present, bottom, and peak values of the network power voltage can
supply voltage be recorded in the DST1. A monitor voltage (default setting: 11 V) can
monitor be set in the DST1 and the Network Power Voltage Drop Flag in the
general status data will turn ON when the voltage drops below the set
monitor value.
Unit conduction The total ON time (unit: 0.1 hrs) of the DST1's internal circuit power can
time monitor be calculated and recorded. A monitor value can be set in the DST1 and
the Unit Maintenance Flag in the general status data will turn ON when
the total time reaches the set monitor value.
Unit Name The user can assign and record a name or comment for every DST1 (up
to 32 characters). These terminal names/comments can be read and
written.
I/O comments The user can assign a name for each I/O contact on the DST1 (up to 32
characters each) and record it in the DST1. The connected device can
be checked for each I/O contact, allowing faulty devices to be identified
during remote maintenance.
Last The date on which maintenance was last performed can be written in
maintenance the DST1. This means that the timing for future maintenance can be
date judged more easily.
I/O power This function is used to detect whether the I/O power is ON. When the
status monitor I/O power supply is turned OFF, the Safety Input Power Status Flag or
Safety Output Power Status Flag in the general status data turns ON.
Contact Contact operation counters are used to count the number of times each
operation input or output contact changes from OFF to ON (maximum resolution
counters of 50 Hz) and record the total values in the DST1.
Total ON time The total ON time for each I/O contact can be calculated (unit: s) and
monitors recorded in the DST1. Monitor values can be set in the DST1, and when
the set number of operations is reached, the Connected Component
Maintenance Flag in the general status data turns ON.
Operation The operation time monitor can measure the time from when an output
time monitor contact goes ON to when the input contact goes ON (unit: ms) and
record the time in the DST1.
Error status information for the last ten errors that occurred are recorded in the DST1. The
Network Configurator can be used to read the error history.
Section 1: Overview