YOKOGAWA ROTAMETER RAMC

6. STATUS AND DIAGNOSTIC INFORMATION
6-2
All Rights Reserved. Copyright © 2006, Rota Yokogawa
IM 01R01B02-01E-E 5th edition October 01, 2020-00
Table 6.2 Condensed status
Quality Sub status EDD Limits Value* NE 107 Priority
GOOD - - 0x80 Good (G) Lowest
GOOD advisory alarm Limit-underow,
Limit-overow
0x89
0x8A
Good (G)
GOOD alarm Limit-ok 0x8C Good (G)
GOOD critical alarm Limit-underow,
Limit-overow
0x8D
0x8E
Good (G)
GOOD maintenance required * 0xA4...0xA7 Maintenance (M)
GOOD maintenance demanded * 0xA8...0xAB Maintenance (M)
GOOD function check * 0xBC…0xBF Good (G)
GOOD update event * 0x84 … 0x87 Good (G)
UNCERTAIN initial value constant 0x4F Failure (F)
UNCERTAIN process related, no maintenance * 0x78...0x7B Out of specication (S)
UNCERTAIN maintenance demanded * 0x68...0x6B Maintenance (M)
UNCERTAIN substitute set constant 0x4B Failure (F)
BAD process related, no maintenance * 0x28...0x2B Failure (F)
BAD maintenance alarm, more diagnosis
available
* 0x24…0x27 Failure (F)
UNCERTAIN simulated value, start - 0x73 Check (C)
UNCERTAIN simulated value, end * 0x74 …0x77 Check (C)
BAD function check/local override * 0x3C...0x3F Check (C)
BAD passivated (diagnostic alerts inhibited) - 0x23 Failure (F) highest
* Limits status information as dened in table 6.3 cause value ranges
Table 6.3 Limits indication in EDD
Limits indication in EDD Additive value
Value-ok Limit-ok no limit ok +0x00
Limit underow Limit-underow +0x01
Limit overow Limit-overow +0x02
Value constant Limit-Value constant constant +0x03
Table 6.4 Condensed Status conguration
Label Low nibble
(Diag_Status_Link)
GOOD, ok 0
GOOD, maintenance required 1
GOOD, maintenance demanded 2
UNCERTAIN, maintenance demanded 3
BAD, maintenance demanded 4
UNCERTAIN, process related, no maintenance 5
BAD, process related, no maintenance 6
BAD, function check /local overrride 7
GOOD, function check 8