Setting The Time Setting - Between Two Attempts To Establish A Connection - WAGO I/O-SYSTEM 750 Manual

180 Appendix
Return value
Parameters
MBX_RECONNECTTIME
12.3.6.12 Setting the Time Setting – Between Two Attempts to Establish a
Connection
SetReconnectionTimePeriod, 0x8B
This command is used to set the waiting time for the master between two attempts
before a new attempt to establish a connection with a slave is undertaken. The
settings only take effect when the 750-644 I/O module is switched to the role of
master.
When establishing a network in "Communication" mode, the master first attempts
to connect all allowed slaves. If unsuccessful, it begins the data exchange, first
with the devices that could be connected. It then scans again for the devices
originally not found at a configured time interval. A similar scenario applies for
the failure of slaves; in this case, the master first attempts to reconnect
immediately and repeats these attempts periodically if it does not succeed.
750-644 I/O modules configured as slaves continuously attempt to connect in
"Communication" mode.
Communication drops
When connecting to slaves, the master is not available for data exchange. If
allowed slaves have failed continuously, the remaining network members
experience communication interruption times within the time interval of the
"ReconnectionTimePeriod" until the failed device is ready again. In "Real-Time
Communication" mode, 750-644 I/O modules provide information on such
interruption times through the cyclical and acyclical diagnostic function. For
time-critical applications, it is possible to temporarily "eject" failed slaves by
applying the function "UnbindRemoteDevice" to them in "Communication"
mode.
Conditions
Mailbox size
6
●
Request
Byte
0
1
2
Value
[0 ... 65535]
12 18 Config. Real-time Ad-hoc Master Slave
● ● ●
7 6
2 2
MBX_SETRECONNECTIONTIMEPERIOD
T
MBX_RECONNECTTIME (LSB)
MBX_RECONNECTTIME (MSB)
750-644 Bluetooth
Description
Minimum time interval in seconds between two
attempts to reestablish a connection when the
previous attempt has failed (value 0: no waiting
between two attempts).
Mode Device role
- -
5 4 3
2 2 2
-
Version 2.0.0, valid from FW/HW Version 03/03
WAGO-I/O-SYSTEM 750
®
RF-Transceiver
Save
config.
● ● ●
2 1
2 2
Reboot
-
0
2
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