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Hydran* 201i Instruction Manual
5.5.4.4
Service Data
This function is used to read the value of six internal parameters used by the General
Electric personnel during Hydran 201Ti maintenance or troubleshooting procedures:
• ServiceL
• ServiceI
• ServiceA
• ServiceU
• ServiceV
• ServiceF
5.5.5 Date & Time Submenu (Extended Menu Only)
The Date&Time submenu is used to change the date and the time of the Hydran
201Ti. The internal clock provides the date and time unless the battery is disconnected.
5.5.6 Communication Submenu (Extended Menu Only)
Note: The Hydran 201Ti's communication parameters can only be modified using the
H201Ti's keypad and display. These parameters cannot be changed using the Hydran
Host software.
This submenu is used to set the communication channel (H201Ti-USB or supervisory link)
and the communication parameters.
5.5.6.1
Comm Channel and Default Channel
The Hydran 201Ti switches automatically from the communication channel indicated
with the CommChannel parameter to the one indicated with the DefaultChannel
parameter if the communications cease for five minutes.
• The CommChannel parameter is used to select a temporary channel, generally
the H201Ti-USB, for the purpose of connecting a host computer during
installation, trouble-shooting or maintenance procedures.
• The DefaultChannel parameter is used to select the permanent channel,
generally the supervisory link.
For each of these two channels, there are four available communication links:
• Local USB (USB link): Use this channel if the H201Ti must be set to Hydran
protocol and has to be connected directly to a host computer running the Hydran
Host software. For this connection, use the H201Ti's USB female connector
located on the side of the CPU module. The USB link is used only occasionally or
for brief periods of time during the initial verification or maintenance procedures.
MA-033
Rev. 14.0, 12-Nov-18
Page 73
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