Siemens SIMATIC ET 200SP Manual page 19

The vehicle indicates its state by applying corresponding resistances. In order to determine
the vehicle state the positive component of the PWM signal is acquired as the peak value
(U ) and is read in:
a
Table 2- 1 States and level U
State PWM S2
A1 Off N/A
A2 On
B1 Off Open
B2 On
C1 Off Closed
C2 On
D1 Off
D2 On
E Off N/A
Invalid
F
The resistance R is the input resistance of the CP interface from the vehicle.
a)
e
TRIP function
The amplitude of the CP (Control Pilot) pilot signal is evaluated. As soon as the Charge state
C or the Charge state D (for the definition of the states please refer to IEC 61851-1) is
reached, the associated Open Collector output (DQ T) becomes conductive. Otherwise it is
high-impedance.
Note
Since the TRIP function is executed to a great extent in the hardware, state transitions in the
charging process can be recognized and signaled very rapidly.
You can use the TRIP signal to observe the switch-off times required by the standard. Use
application means to ensure that after deactivation of the TRIP signal (DQ-T becomes high-
impedance) the power flow is interrupted within the switch-off times required by the standard
and that the charging cable is de-energized.
The switch-off delay of the DC output via the DIN_70121 function block is not suitable for
guaranteeing the switch-off times required by the standard.
Technology module TM ECC PL ST (6FE1242-6TM20-0BB1)
Manual, 07/2019, A5E43919893B-AA
a
Vehicle Vehicle
connected ready for
with charge charging
column
No No
Yes No
Yes Yes
N/A N/A
Charge U
a
column
ready for
charging
No 11 V .. 13 V
Yes
No 8 V .. 10 V
Yes
No 5 V .. 7 V
Yes
No 2 V .. 4 V
Yes
No -1 V .. 1 V
No -11 V ... -1 V Invalid CP voltage
No -13 V ... -
11 V
Product overview
2.2 Control Pilot
Remark
a)
U = 0 V
b
R = R2 = 2.74 kΩ
a)
e
R = R2||R3 = 882 Ω
a)
e C
Ventilation not required
R = R2||R3 = 246 Ω
a)
e D
Ventilation required
U = 0 V: EVSE, main problem
b
or mains not available, pilot wire
short-circuit to ground, etc.
E.g. error in the charge column,
charge column in maintenance,
etc.
17