SIPLUS S7-1200 SM 1221 RAIL

Заказные данные
(1)

Информационные материалы

Digital inputs as supplement to the integral I/O of the CPUs
Approved in accordance with the railway standards EN 50155, EN 15121, EN 50124, EN 50125 and EN 45545 for use in rail traffic
For flexible adaptation of the controller to the corresponding task
For subsequent expansion of the system with additional inputs

Область применения

Digital input modules allow the connection of the controller to digital signals of the process.

This provides users with the following advantages:

Optimum adaptation:
with signal modules which can be mixed as desired, users can adapt their controllers exactly to the relevant task. This avoids superfluous investments.
Flexibility:
if the task is expanded subsequently, the controller can be upgraded. Updating of the user program is extremely simple.

Функции

The SM 1221 digital input signal modules convert the level of the external digital signals from the process into the internal signal level of the S7-1200.

Технические данные

Order number		6AG2221-1BF32-1XB0
		SIPLUS S7-1200 SM 1221 8DI RAIL
General information
Product type designation		SM 1221 DI 8x24 VDC
Supply voltage
Rated value (DC)
● 24 V DC		Yes
permissible range, lower limit (DC)		20.4 V
permissible range, upper limit (DC)		28.8 V
Input current
from backplane bus 5 V DC, max.		105 mA
Digital inputs
● from load voltage L+ (without load), max.		4 mA; per channel
Output voltage
Power supply to the transmitters
● present		Yes
Power loss
Power loss, typ.		1.5 W
Digital inputs
Number of digital inputs		8
● in groups of		2
Input characteristic curve in accordance with IEC 61131, type 1		Yes
Number of simultaneously controllable inputs
all mounting positions
— up to 40 °C, max.		8
horizontal installation
— up to 40 °C, max.		8
— up to 50 °C, max.		8
vertical installation
— up to 40 °C, max.		8
Input voltage
● Type of input voltage		DC
● Rated value (DC)		24 V
● for signal "0"		5 V DC at 1 mA
● for signal "1"		15 V DC at 2.5 mA
Input current
● for signal "0", max. (permissible quiescent current)		1 mA
● for signal "1", min.		2.5 mA
● for signal "1", typ.		4 mA
Input delay (for rated value of input voltage)
for standard inputs
— parameterizable		Yes; 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms and 12.8 ms, selectable in groups of four
for interrupt inputs
— parameterizable		Yes
Cable length
● shielded, max.		500 m
● unshielded, max.		300 m
Interrupts/diagnostics/status information
Alarms		Yes
Diagnostic functions		Yes
Alarms
● Diagnostic alarm		Yes
Diagnostic messages
● Monitoring the supply voltage		Yes
Diagnostics indication LED
● for status of the inputs		Yes
● for maintenance		Yes
● Status indicator digital input (green)		Yes
Potential separation
Potential separation digital inputs
● between the channels, in groups of		2
Isolation
Isolation tested with		According to EN 50155 (routine test)
Degree and class of protection
Degree of protection acc. to EN 60529
● IP20		Yes
Standards, approvals, certificates
Railway application
● EN 50121-3-2		Yes; EMC for rail vehicles
● EN 50121-4		Yes; EMC for signal and telecommunications systems
● EN 50124-1		Yes; Railway applications - overvoltage category OV2; pollution degree PD2; rated surge voltage UNi = 0.5 kV; UNm = 24 V DC
● EN 50125-1		Yes; Rail vehicles - see ambient conditions
● EN 50125-2		Yes; Stationary electrical equipment - see ambient conditions
● EN 50125-3		Yes; Signal and telecommunications systems - see ambient conditions; vibrations and shocks: Application point outside of tracks (1 m to 3 m away from track)
● EN 50155		Yes; Rail vehicles - temperature class T1, horizontal mounting position, salt spray Class ST2
● EN 61373		Yes; Rail vehicles - vibrations and shocks: Category 1 Class A/B
● Fire protection acc. to EN 45545-2		Yes; Rail vehicles - verification on request
Ambient conditions
Free fall
● Fall height, max.		0.3 m; five times, in product package
Ambient temperature during operation
● min.		-25 °C; = Tmin; Startup @ -25 °C
● max.		60 °C; = Tmax; +70 °C for 10 minutes (T1 acc. to EN 50155) for horizontal mounting position
Ambient temperature during storage/transportation
● min.		-40 °C
● max.		70 °C
Extended ambient conditions
● relative to ambient temperature-atmospheric pressure-installation altitude		Tmin ... Tmax at 1080 hPa ... 795 hPa (-1000 m ... +2000 m)
Relative humidity
— With condensation, tested in accordance with IEC 60068-2-38, max.		100 %; RH incl. condensation/frost (no commissioning under condensation conditions)
Resistance
— against biologically active substances / conformity with EN 60721-3-3		Yes; Class 3B2 mold, fungus and dry rot spores (with the exception of fauna). The supplied connector covers must remain on the unused interfaces during operation!
— against biologically active substances/conformity with EN 60721-3-5		Yes; Class 5B2 mold and fungal spores (excluding fauna). The supplied plug covers must remain in place over the unused interfaces during operation!
— against chemically active substances / conformity with EN 60721-3-3		Yes; Class 3C4 (RH < 75%) incl. salt spray according to EN 60068-2-52 (degree of severity 3). The supplied connector covers must remain on the unused interfaces during operation!
— against chemically active substances/conformity with EN 60721-3-5		Yes; Class 5C3 (RH < 75%) including salt spray according to EN 50155 (ST2). The supplied plug covers must remain in place over the unused interfaces during operation!
— against mechanically active substances / conformity with EN 60721-3-3		Yes; Class 3S4 incl. sand, dust. The supplied connector covers must remain on the unused interfaces during operation!
— against mechanically active substances/conformity with EN 60721-3-5		Yes; Class 5S3 including sand and dust. The supplied plug covers must remain in place over the unused interfaces during operation!
Connection method
required front connector		Yes
Mechanics/material
Enclosure material (front)
● Plastic		Yes
Dimensions
Width		45 mm
Height		100 mm
Depth		75 mm
Weights
Weight, approx.		170 g
Other
Note:		For use in railway applications, also observe the product information "SIPLUS extreme RAIL" A5E37661960A Online Support article 109736776