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Connection diagrams

19 Connection diagrams

z2 +

E1

d2

z4

d4

z6 d6

+

+

E2

E3

z8 +

d8 z10 d10 z12 d12 z14 d16 d14 z16 z18 z20 d18 d20 z22 d22 z24 d24 z26 d26 z28

  • +

    +

+

+

+

E4

E5

E6

ERR

GW1

GW2

Z-17620

En

ϑ

+

En

ϑ

+

++ ++ EB1 EB2 EB3 EB4

I

K

      • +

        A2(U)

        • +

          A1(I)

    • +

      AB1

  • +

    ENI

RS 485

1)

R

i

*)

R

i

*)

R

i

*)

R

i

*)

z2

d2

  • +

    US1

+

z6 d6

  • +

    US2

+

z10 d10

  • +

    US3

+

z14 d14

  • +

    US4

+

+

0

L1

N

z18 d18 z20 d20 z22 d22

KS

d28

d30

d32

Z-17622 EN

#

E

  • +

    En

#

#

#

E

E

E

+

E n + E n

Motherboard or I/O-expansion module connection two-wire transmitter

  • +

    En

*) Ri = 200 ;

In the explosion-protected version, communication with intelligent transmitters is not supported

Fig. 19-1 Connection diagram of 19" plug-in card - motherboard (above) and mains card (below) 1) RS 485 alternative to GW2: z26 = TxD/RxD-P, d26 = TxD/RxD-N, z28 = reference po- tential *) Ri = 200 ; communication with intelligent transmitters is only possible with non explo-

sion-protected devices

E

n

Analog inputs E1...E6, E1, EX2

d2

z4 +

d4

EX1

z6 d6

5V

5V

24V

24V

24V

d8 z10 d10 z12 d12 z14 d14 z16 d16 z18 d18 z20 d20 z22 d22 z24 d24 z26 d26 z28 d28 z30 d30 z32 d32 z8 + 0 0 + + + + + AX1 + AX2 + + + + + 5V + 24V 24V 24V 5V + EBX1 EBX2 EBX3 EX2 + + +

Z-17621

I

KX

I

KX

EBXa EBXb

RL RL ABXa ABXb

R

L 0

ABX1

R

L 0

R

L 0

ABX3

ex t e r n

ϑ

ϑ

Fig. 19-2 Connection diagram of 19" plug-in card - I/O extension card

Note Link negative pole and system zero together when connecting electrically isolated 4-wire transmitters to the analog inputs EX1 and EX2

17

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