HA243821
Issue 5 Mar 98
Section5
Page 5 - 37
MODEL 346 INSTALLATION AND OPERATION MANUAL
5.7.5 PARAMETER ACCESS (Cont.)
Table 5.7.5c Instrument parameter definitions
Mne-
monic
For-
mat
Mne-
monic
CN *
CN *
Bits
Bits
Instrument parameter description
Access
wrt. host
BF
BL
BN
CJ
CQ
EE
ID
II
PM
SK
SQ
SS
ST
Tl
Tc
Td
Te
Ts
V0
V1
V2
V3
FF
FF
FE
A
6
3
FE
5
FE
6
5
3
B
D
3
2
7
0
D
0
6
6
6
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
x to {
x to {
x to {
x to {
x to {
Any
Any
Any
Any
Miscellaneous instrument menu bits
Time format: 0 = 12 hour; 1 = 24 hour
Chart speed units: 0 = mm/hour; 1 = inches/hour
Operator alarm setpoint access: 0 = off; 1 = on
Not used
Block length. EI protocol definition. Always returns >8080
Six character batch number for ID line on chart
Cold junction temperature
Determines the external CJC temperature in ˚C
Chart hold action equation (See note page 5-35)
Instrument error code
Digits 1 & 2
00 = No error since last initialisation
01= Invalid mnemonic
02 = Bad checksum
03 = Comms offline
04 = Read attempt on write only
05 = Write attempt on read only
06 = Invalid CN
07 = Invalid data format (too many digits, missing sign etc.)
08 = Not enough characters
09 = Not used
Digit 3
0 = No error since last initialisation
4 = One or more errors since last initialisation
Digit 4
0 = No error since last initialisation
1 = Communications error
7 = Invalid message
8 = Bad message content
Instrument ID as entered in the instrument menu
Instrument type. Always returns >0346
Print mode
00 = No print
01 = Overprint
02 = Break trace
Softkey operator access enable
00 = Softkey does not appear in menu (access disabled)
01 = Softkey appears in menu (access enabled)
Alternative chart spd. action equation (See note page 5 - 35)
Softkey descriptor (up to 16 characters)
Time and date setting for the instrument
Timer reset action equation (See note page 5 - 35)
CHANGING THIS PARAMETER RESETS THE TIMER
Timer current value. Gives time remaining for periodic timer
Time period for periodic timer
Timer type. >0000 = off; >0001 = Periodic; >0002 = Clock
CHANGING THIS PARAMETER RESETS THE TIMER
Time and date for clock timer.
The following values result in blank (don't care) settings
Minutes = 60; Hours = 24; Days = 32, Months = 13, Year = 00
Communications software version. Version 1.0 =>0100
Primary chart speed. Integer values followed by decimal point only.
Alternative chart speed as for V1 above.
History record chart speed. The apparent chart speed (amount of
history time) that will be presented in the 50mm of chart playback.
expressed as a chart speed. See V1 above.
R/W
R/W
R/W
Read only
R/W
R/W
R/W
Read only
R/W
Read only
R/W
R/W
R/W
R/W
R/W
R/W
Read only
R/W
R/W
R/W
Read only
R/W
R/W
R/W
0
1
2
3 to 15
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
* 'Any' in the CN column, means that any valid CN may be used - see table 5.7.5a
