4
4
C
C
H
H
A
A
N
N
N
N
E
E
L
L
A
A
N
N
A
A
L
L
O
O
G
G
U
U
E
E
R
R
E
E
C
C
E
E
I
I
V
V
E
E
R
R
1
1
7
7
O
O
F
F
2
2
4
4
1
1
2
2
0
0
-
-
2
2
0
0
8
8
-
-
1
1
2
2
T
T
Y
Y
P
P
E
E
S
S
I
I
L
L
B
B
U
U
S
S
-
-
R
R
X
X
4
4
A
A
U
U
S
S
E
E
R
R
M
M
A
A
N
N
U
U
A
A
L
L
I
I
s
s
s
s
u
u
e
e
:
:
0
0
4
4
RX4A::>_
The ‘marker error’ has been displayed because analogue output one has been configured
to Fastlink but a valid Fastlink marker channel address has not been specified. See the
Fastlink marker command (FSTMRK) for details on assigning a valid marker address.
Once a valid marker address has been configured the error message will disappear as
shown in the example below.
RX4A::>ANASEL
Chan[1] = Fastlink
Chan[2] = Analink
Chan[3] = Analink
Chan[4] = Analink
RX4A::>_
5.14 ANALOGUE OUTPUT COMMAND
The analogue output command is used to display the current value of all the analogue
outputs. The example below shows analogue output 3 being displayed:
RX4A::>AOUT
Chan[1] = 12.230mA
RX4A::>_
If the output attribute is omitted from the command then the last displayed output will be
displayed again. If the analogue output command has not been used since power up and
the output attribute is omitted from the command then output one will be displayed by
default.
5.15 FASTLINK MARKER COMMAND
This command is used to display and configure the FASTLINK marker SILBUS channel
address. A valid FASTLINK marker is required whenever any one of the analogue outputs
is configured to transmit using the FASTLINK protocol. The marker is generated by the
GSW1 channel generator and can be any valid SILBUS channel address. Only one
marker is required per SILBUS field bus network. The current marker channel address
can be displayed by simply entering the command name as shown in the example below:
RX4A::>FSTMRK
Fastlink Marker SILBUS Address is A3
RX4A::>_
The example below shows the format of the command when the marker address is
configured. The keyword “SET” is required to invoke a change, followed by the SILBUS
channel address of the FASTLINK marker. If FASTLINK is not to be used by the TX4A
receiver then the marker channel should be disabled. The keyword “DISABLE” is used
when the marker channel is not required.
