Section 5
Page 5 - 34
HA243821
Issue 5 Mar 98
MODEL 346 INSTALLATION AND OPERATION MANUAL
5.7.5 PARAMETER ACCESS
The parameter address consists of a Group ID (G), a Unit ID (U), a channel address (CN) and the parameter
mnemonic C1 C2. The Group and Unit IDs have already been described in the polling section above.
The channel address CN covers not only measuring and derived channels, but also alarms totalisers etc. as in
the table below.
Table 5.7.5a CN definition
The mnemonic C1, C2 defines the actual parameter to be accessed within the channel, alarm, totaliser etc.
selected by CN. The following table lists each parameter along with its mnemonic, together with cross references
to a further table which give details of the parameter itself.
PARAMETER TABLES.
The tables later in this section give details of how the recorder configuration parameters can be accessed using a
serial link. For full details of the functions described by the parameters, the relevant sections of the manual
should be referred to. The parameter tables refer to a note which is given opposite. The tables also refer to a
data format. A full discussion of formats is given in Section 5.7.6
Definition
0 Relay
1
1
Measuring channel 1 or relay 2
2
Measuring channel 2 or relay 3
3
Measuring channel 3 or relay 4
4
Derived channel 1 or relay 5
5
Derived channel 2 or relay 6
6
Derived channel 3 or relay 7
7 Relay
8
8 Relay
9
9 Relay
10
A
Measuring channel 1 Alarm 1 (A11)/Relay 11
B
Measuring channel 1 Alarm 2 (A12)/Relay 12
C
Measuring channel 1 Alarm 3 (A13)/Relay 13
D
Measuring channel 1 Alarm 4 (A14)/Relay 14
E
Measuring channel 2 Alarm 1 (A21)/Relay 15
F
Measuring channel 2 Alarm 2 (A22)/Relay 16
G
Measuring channel 2 Alarm 3 (A23)
H
Measuring channel 2 Alarm 4 (A24)
I
Measuring channel 3 Alarm 1 (A31)
J
Measuring channel 3 Alarm 2 (A32)
K
Measuring channel 3 Alarm 3 (A33)
L
Measuring channel 3 Alarm 4 (A34)
M
Derived channel 1 Alarm 1 (A41)
N
Derived channel 1 Alarm 2 (A42)
O
Derived channel 1 Alarm 3 (A43)
P
Derived channel 1 Alarm 4 (A44)
Q
Derived channel 2 Alarm 1 (A51)
R
Derived channel 2 Alarm 2 (A52)
S
Derived channel 2 Alarm 3 (A53)
T
Derived channel 2 Alarm 4 (A54)
U
Derived channel 3 Alarm 1 (A61)
V
Derived channel 3 Alarm 2 (A62)
W
Derived channel 3 Alarm 3 (A63)
X
Derived channel 3 Alarm 4 (A64)
Y Not
used
Z Not
used
a Not
used
b Not
used
c Not
used
d Not
used
e Not
used
f Not
used
g Not
used
h Not
used
i Not
used
j Not
used
k DV1
calculations
l DV2
calculations
m DV3
calculations
n DV4
calculations
o DV5
calculations
p DV6
calculations
q DV7
calculations
r DV8
calculations
s DV9
calculations
t Totaliser
1
u Totaliser
2
v Totaliser
3
w Totaliser
4
x
Totaliser 5 or timer 1
y
Totaliser 6 or timer 2
z Timer
3
{ Timer
4
CN
Definition
CN
CN
CN
Definition