System Manual Compact Systems 7 Start-Up
HI 800 141 E Rev. 2.02 Page 87 of 110
(configuration) become operative for the HIMatrix communication, once they have been re-
compiled with the user program and transferred to the controller.
The properties of the communication system and Ethernet switch can also be changed online
using the Control Panel. These settings become operative immediately, but they are not
adopted by the user program.
7.8.2 System Signals of safeethernet Communication
The user program can use system signals to read the status of the safeethernet communication
(peer-to-peer communication) and of some time parameters. It can control peer-to-peer
communication via the Connection Control system parameter.
The following signals are available for safeethernet communication:
Maximum time in ms that may elapse between
the reception of two valid messages
Time in ms that elapsed while waiting for a
response to the last message sent
[UINT]
0 (CLOSED)
1 (TRY_OPEN)
2 (CONNECTED)
CLOSED: No connection
TRY_OPEN: Attempt to establish the
connection (state valid for active and passive
sides)
CONNECTED: The connection is established
(active data exchange and time monitoring).
Communication version signature
Table 59: System Signals of a safeethernet Connection for Reading the Status - CPU OS up
to V7
[WORD]
0x0000
0x0100
0x0101
0x8000
Commands:
AUTOCONNECT
TOGGLE_MODE_0
TOGGLE_MODE_1
DISABLED
Used by a user program to close a safety-
related protocol or enable it for operation. Refer
to the following table for the corresponding
description.
Table 60: System Signal of a safeethernet Connection for Setting the Connection Control -
CPU OS up to V7
The following commands can be used for the Connection Control signal:
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