Fluid Components International CMB User Manual
Page 40
Designation
Terminal designation
Type of protection
Standard
EEx ia
EEx e
(Not Ex)
Signal outputs
11 and 12
x
x
Current 1, 0/4 to 20mA
with HART
®
41 and 42
x
13 and 14
x
x
Current 2, 0/4 to 20mA
43 and 44
x
16 and 17
x
x
Binary output 1
(passive pulse)
46 and 47
x
45 and 48
x
Binary output 1
(active pulse)
15 and 18
x
19 and 20
x
x
Binary output 2
(status or second pas-
sive pulse output for
custody transfer opera-
tions)
49 and 50
x
33 and 34
x
x
Option
Binary output 3
(status output during
custody transfer opera-
tions)
53 and 54
x
Profibus PA
option
39 (A) and 40 (B)
x
Control unit BE
Shield, -, +
x
x
Alternatives for cur-
rent output 2
21 and 22
x
x
Binary input
51 and 52
x
Modbus/Profibus DP
with RS 485-IS
35 (A) and 36 (B)
(not currently available)
x x
Profibus DP
37 (A) and 38 (B)
(not currently available)
x
¾
Since the signal outputs cannot be activated simultaneously owing to the limited number of ter-
minals available, one of the aforementioned options must be selected. Field bus devices
(Profibus PA) are not outfitted with an analog or impulse output.
¾
A maximum of 8 signal output terminals is available (in addition to the terminal for the control unit
and Profibus PA).
¾
“Increased safety” type of protection signal outputs are to be connected only to "Extra low volt-
age" degree of protection circuits with safe electrical isolation in accordance with DIN VDE 0100
part 410.
¾
Under no circumstances are “Increased safety” signal outputs to be combined with “In-
trinsic safety” signal outputs
.
¾
If interface output RS 485 (under development and not currently available), which is only avail-
able in an “Increased safety” model, is selected, all signal outputs must also have this type of pro-
tection.
¾
If “Control input” or “RS 485 interface” are selected, current output 2 is not supplied.
¾
If the sensor and transmitter are interconnected using a cable, the following cable is to be used:
SLI2Y (SP) CY 5 x 2 x 0.5 mm (for explosion-proof applications, grey for non-explosion
proof applications).
Page 40 of 106
CMB & CT OPERATING MANUAL