Endress+Hauser WirelessHART Fieldgate SWG70, Руководство по эксплуатации

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Diagnostics WirelessHART Fieldgate SWG70
56 E Hauser
9.2 Wireless Communication
The Wireless Communication leaf contains information on the operation of Fieldgate
SWG70 within the wireless network.
9.2.1 Overview
Overview provides information about the I/O interfaces of the wireless network as well as
network statistics.
1. Click Diagnostics => Wireless Communication => Overview to display the associated
parameters:
"Wireless Communication
- Overview" parameters
Parameter Meaning
I/O System Capabilities
Max. Card Number Indicates the maximum number of cards in the I/O system. This corresponds to the
maximum number of wireless devices that can be connected to the gateway.
Max. Channel Number Indicates the maximum number of channels.
Max. Sub Dev. Number Indicates the maximum number of sub devices that can be connected to a specific
channel.
Number of Devices Indicates the current number of subdevices.
– Every device counts as a subdevice, no matter if it is a wireless device or a wired
device connected to a WirelessHART Adapter (SWA70) .
Lifetime Network Statistics
Reliability Ratio of the number of successful packet transmissions to the sum of the successful
and permanently lost packet transmissions taken across the entire network
Stability Ratio of the number of successful packet transmissions to the sum of the successful
and unsuccessful packet transmissions taken across the entire network.
– Unsuccessful transmissions are repeated for as many time as necessary using all
communication paths available. If the repeat process is interrupted, e.g. by
removing the device from the network, then the corresponding packets are
counted as lost.
Latency Average time taken for packets generated by the wireless devices to reach the
gateway.
Lost Upstream Packages Total number of packets generated by the wireless devices that were lost when
transferred over the network.