en
XA 155F-A
Monorack
FMB ...
Non-hazardous area
d
b
z
2
Input
4
6
8
Rackbus
10
(E+H bus)
12
Analogue
outputs
14
16
r
18
Relay
u
a
20
r
22
Relay
a
u
24
26
r
Alarm relay
u
a
28
L–
30
Power supply
L+
32
Replaceable fuses FMB 672 Z/FMB 677 Z
2
Racksyst (19")
d2
➀
Channel
d4
z2
➁
Channel
z4
d10
b10
d12
➀
Current
d14
z12
➁
Current
d14
➀
b12
Voltage
b14
➁
Voltage
z14
r
z18
➀
u
d20
a
z20
r
z22
➁
u
d24
a
z24
r
z26
u
d28
a
z28
z30
d32
M 63 mA
M 500 mA
FMB ...
+
+
EEx ia IIC/IIB
–
–
+
+
EEx ia IIC/IIB
–
–
+
+
+
0/4...20 mA
–
+
+
0/4...20 mA
–
+
+
0/2... 10 V
–
+
+
0/2... 10 V
–
L–
20 V...30 V
L+
NT
Explosive hazardous area
Input
Zone 0
circuit 1
Zone 20
Input
circuit 2
Remote dialog
Level,
volume,
density,
pressure,
differential
pressure
measurement
➀
Relay
➁
Relay
Alarm relay
DC
FMB 672 Z/FMB 677 Z
1
17
Coding of associated
2
18
equipment [EEx ia] IIC
3
19
at positions 1 + 24
4
20
5
21
6
22
7
23
8
24
9
25
10
26
11
27
12
28
13
29
14
30
15
31
16
32
Silometer
Endress+Hauser