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Heinrichs Messtechnik GmbH
OPERATING MANUAL TMU / UMC3
Page 45 of 122
Alternative configurations for Current Output 2
Designation
Terminal designation
and (Polarity)
Type of protection
Ex-device
Standard
device
Ex ia
Ex-eb
(Non-Ex)
Binary output 1
(passive pulse)
21(-) and 22(+)
x
x
51(-) and 52(+)
X
Modbus RTU with RS 485 - IS
35(A) and 36(B)
x
x
Modbus RTU
37(A) and 38(+)
x
x
Profibus DP with RS 485 - IS
35(A-) and 36(B)
x
Table 13: Alternative current output configuration
Note:
Field bus devices (Profibus PA or FF) are not outfitted with analog or impulse outputs.
Output Signals shown in Ex-ia type of protection
Control unit connector
and communication
interface terminals
Signal output
terminals