Johnson Controls METASYS ASC, Сетевое администрирование и устранение неисправностей: Руководство

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Introduction—ASC and N2 Bus Networking and Troubleshooting Guide 47
Table 10: CBLCON LEDs
Red LED Green LED Cause
OFF OFF No power to ASC
ON OFF Zone Bus wire open
ON ON Zone Bus wire shorted to Common or CBLCON-
0 switch in download position
ON Blinking Normal communications
Table 11 lists and describes the errors that may occur while using the
HVAC PRO for Windows

commissioning tool with the ASCs over the
Zone Bus. Often, the cause of the error is a loose or improper connection
between the Cable Pro (AS-CBLPRO), laptop PC, and the controller. A
defective COM port on the laptop could also be at fault. Other times, a
defective controller can cause an error. Realize that it takes ten seconds
for an ASC to reset and resume communication after being downloaded or
after exiting HVAC PRO for Windows.
Table 11: Zone Terminal Communication Errors on Download
Error Number
or
Description
Cause
(Not Displayed)
Description Solution
1 Undefined command The device is being sent a message
that contains an invalid command.
Check for tight and proper
connections between the laptop
PC, Cable Pro, and the ASC.
5 Invalid message size The size of the message sent does
not correspond to the type of
message sent.
11 Invalid command The command issued is not valid for
the data type.
14 Not ready The ASC cannot process this
message at this time. For example,
the EEPROM is not functioning
properly. Cycle power on the ASC. If
problem persists, return ASC for
repair or replacement.
15 Bad E
2
Write A known problem with the EEPROM
exists. Return the ASC for repair or
replacement.
16 No communication Some hardware problem exists, such
as a loose connection or a failed
component. Check for tight and proper
connections between the laptop
PC, Cable Pro, and the ASC.
Hardware
Communication
Error
Controller is still in reset mode.
Resetting takes ten seconds after a
download. Wait ten seconds for the reset
period to expire before trying to
commission the controller.
17 Bad CRC The Cyclical Redundancy Check of
the message received is incorrect
due to an error in transmission. Check for tight and proper
connections between the laptop
PC, Cable Pro, and the ASC.
18 Invalid response The message received is not what
the HVAC PRO for Windows Load
utility expected.
Troubleshooting