Siemens SIMATIC Ident Compact Operating Instructions page 7

Pinout of Power IO RS-232 cable
NOTICE
INPUT - COMMON or OUTPUT - COMMON must be connected
To be able to use the inputs and outputs described below, it is imperative that the INPUT - COMMON or OUTPUT -
COMMON is connected.
Table 3-1 SIMATIC MV440
Pin Color Signal name
H red 24 V DC
G blue 0 V
K violet INPUT1
D yellow INPUT /
OUTPUT2
L Gray/ INPUT /
pink OUTPUT3
C green INPUT /
OUTPUT4
B brown INPUT /
OUTPUT5
A white INPUT -
COMMON
E gray OUTPUT -
COMMON
J black STROBE
(OUTPUT)
F pink RS-232 TXD
M red/blue RS-232 RXD
SIMATIC MV420/SIMATIC MV440
A5E02370910-06, 04/2013
Possible values
TRG
DISA, SEL0, SEL1, SEL2, SEL3, TRN,
RES, IN_OP, TRD, RDY, READ,
MATCH, N_OK, EXT_1, EXT_2,
EXT_3, EXT_4
DISA, SEL0, SEL1, SEL2, SEL3, TRN,
RES, IN_OP, TRD, RDY, READ,
MATCH, N_OK, EXT_1, EXT_2,
EXT_3, EXT_4
DISA, SEL0, SEL1, SEL2, SEL3, TRN,
RES, IN_OP, TRD, RDY, READ,
MATCH, N_OK, EXT_1, EXT_2,
EXT_3, EXT_4
DISA, SEL0, SEL1, SEL2, SEL3, TRN,
RES, IN_OP, TRD, RDY, READ,
MATCH, N_OK, EXT_1, EXT_2,
EXT_3, EXT_4
P-type inputs/outputs:
INPUT - COMMON = 0 V and
OUTPUT - COMMON = + 24 V DC
N-type inputs/outputs:
INPUT - COMMON = + 24 V DC and
OUTPUT - COMMON = 0 V
Default setting Meaning
Power supply
Power supply
TRG Trigger input
IN_OP Freely selectable input
or output.
RDY Freely selectable input
or output.
READ Freely selectable input
or output.
N_OK Freely selectable input
or output.
Reference point, 0 V or
24 V for inputs.
Reference point, 0 V or
24 V for outputs.
Signal output for
connecting external
strobe lights
RS-232 send line
RS-232 receive line
5