Hardy HI 2151/30WC Single-Scale Controller - Manual (Page 62)

HI 2151 Series Weight Controller
Profibus Interface Option
56
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NOTE: Sending another command with valid parameters will correct the error. However, to clear
the response/error code bits you must rerun the write “0" or “90" command, which clears
the response/error code bits. Otherwise the error bit will always reflect the previous error.
3. To check if the associated bit(s) have been cleared. Read the response/error bits to see if they
are zero. If they are not then the associated bit(s) have not been cleared. Verify to determine if
the write “0" or “90" command was correct.
8.5 PROFIBUS STATUS INDICATORS
8.5.1 PROFIBUS INTERFACE CARD LED
1. The PROFIBUS Interface Card is fitted with a “Green LED” (See Fig 8-1)
with the following indicators:
a. A solid green light = On Line/There is communication between the
PLC/PC and the PROFIBUS Interface Card.
b. A flashing green light = Off Line/There is no communication
between the PLC/PC and the PROFIBUS Interface Card.
8.5.2 HI 2151 SERIES INDICATOR LIGHT
The status of PROFIBUS communications is determined upon entering the
PROFIBUS Options Menu. (See Chapter 3) The Zero track light indicates:
1. Flashing = Run
2. Off = Off Line
Figure 8-2