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Short Description of the ASM Hardware
Switch settings, interfaces and indicators of the ASM 452
4
5
6
X11
1
2
3
4
5
6
X1
1
X12
1
2
3
4
5
6
X13
1
2
3
LEDs for MOBY
RxD
SLG active with command
PRE/ERR 1
Channel1: MDS present or
PRE/ERR 2
Not used with FC 56
SLG 1
SLG 1 is selected
SLG 2
Not used with FC 56
Socket
X11 und X12
(PROFIBUS-DP)
X13
(Voltage)
* Not circuited
Figure A-6 Switch settings, interfaces and indicators of the ASM452
A-10
Example: Terminal resistance off (status on delivery)
on
off
Example: PROFIBUS address 120 (status on delivery)
3
4
2
+2
ON
1
SF
BF
ON
DC 24 V
SLG1
2
X2
3
RxD
5
4
PRE/ERR 2
PRE/ERR 1
DE0
DE1
X3
X4
SLG2
RxD
MDS present:
error indication
Error indication:
Only SLG 1 can be selected with FC 56.
Pin Assignment
1
Signal B (red)
2
PE
3*
PE
4
Signal A (green)
5*
L+
6*
M
1
PE
2
L+
3
M
4
PE
5
L+
6
M
5
6
+ 2
+ 2
= 8 + 16 + 32 + 64 = 120
2
3
4
5
6
7
8
LEDs for PROFIBUS-DP
SF:
System Fault (hardware error on ASM)
BF:
Bus Fault (error on PROFIBUS-DP)
ON:
On when logic voltage active on ASM
(is generated from 24 V power supply)DC
DC 24 V:
On when 24 V power is connected on
ASM
The LED is permanently ON. If more
than one MDS is in the field, the
number of MDSs is indicated by briefly
interrupting the light. No error output.
The LED is permanently OFF. The last
error number is indicated by brief light
pulses.
Socket
Pin Assignment (SLG)
1
X1/X3
2
3
4
5
X2/X4
1
2
3
4
5
Normal use
ASM 451 compatible
(Use GSD file siem 804d.
Not for new configurations.)
+RxD
+TxD
-TxD
-RxD
PE
X2
X4
+24 V
+ 24 V
DA1
DE1
0 V
0 V
DA0
DE0
PE
PE
FC 56
J31069-D0155-U001-A0-7618
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