SIPLUS S7-300 SM 321 SIEMENS digital input modules

Overview

Digital inputs
For connection of switches and 2-wire proximity switches (BEROs)

Note:

SIPLUS extreme products are based on SIMATIC standard products. The contents listed here were taken from the respective standard products. SIPLUS extreme-specific information was added.

Application

SIPLUS S7-300 SM 321 Digital input modules can be used to connect the PLC to digital process signals. They are suitable for connecting standard switches and two-wire proximity switches (BERO).

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Design

SIPLUS S7-300 SM 321 Design

Digital input modules feature the following mechanical characteristics:

Compact design:
The rugged plastic housing contains:
- Green LEDs for indicating the signal status at the inputs.
- Socket for the front connector, protected, behind the front door.
- Labeling field on the front door.
- Connector pin assignment for the wiring on the inside of the front door.
Easy installation:
There are no slot rules, the addresses of the inputs are determined by the slot.
When used in ET 200M in combination with active bus modules, hot swapping is possible without any reaction.
User-friendly wiring.

The modules are available with 8, 16, 32, or 64 channels.

Function

SIPLUS S7-300 SM 321 Function

Digital input modules convert the level of the external digital signals from the process to the internal signal level (logical “0” or “1”) of the controller.

Various input voltages support the connection of different process signals:

24 V DC
48 to 125 V DC
120/230 V AC

Apart from cost-effective, easy-to-handle modules, modules with special functions are also available:

For use in isochronous mode
Process and diagnostic alarms
Use for current sourcing or current sinking

Special modules are also available for process engineering which, for example, support the NAMUR standard.

Technical specifications

Article number	6AG1321-1BH02-2AA0	6AG1321-1BL00-2AA0	6AG1321-1CH20-2AA0	6AG1321-1FF01-2AA0	6AG1321-1FF10-7AA0
	SIPLUS SM321 16DE/24VDC	SIPLUS SM321 32DE/24VDC	SIPLUS SM 321 16DE/ DC 48-125 V	SIPLUS S7-300 SM321 8DE/120/230VAC	SIPLUS S7-300 SM321 8DI/120/230VAC
Supply voltage
Load voltage L+
● Rated value (DC)	24 V	24 V	48 V
● permissible range, lower limit (DC)	20.4 V	20.4 V	48 V
● permissible range, upper limit (DC)	28.8 V	28.8 V	125 V
Load voltage L1
● Rated value (AC)				230 V; 120/230 V AC	230 V; 120/230 V AC; all load voltages must have the same phase.
Input current
from backplane bus 5 V DC, max.	10 mA	15 mA	40 mA	29 mA	100 mA
Power loss
Power loss, typ.	3.5 W	6.5 W	4.3 W	4.9 W	4.9 W
Digital inputs
Number of digital inputs	16	32	16	8	8
Input characteristic curve in accordance with IEC 61131, type 1	Yes	Yes	Yes	Yes	Yes
Number of simultaneously controllable inputs
all mounting positions
— up to 60 °C, max.			8; 6 @ Ue 146 V
— up to 70 °C, max.			6; 4 @ Ue 146 V
horizontal installation
— up to 40 °C, max.	16	32
— up to 50 °C, max.			8
— up to 60 °C, max.	16; 16 @ > 60 °C	16; 12 @ > 60 °C	8; 6 to Ue 146 V	8; up to 70 °C	8; 8 @ > 60 °C
vertical installation
— up to 40 °C, max.	16			8
Input voltage
● Type of input voltage	DC	DC	DC	AC	AC
● Rated value (DC)	24 V	24 V	48 V; 48 V DC to 125 V DC
● Rated value (AC)				230 V; 120/230 V AC (47 … 63 Hz)	120 V; 120/230 V AC (47 … 63 Hz)
● for signal “0”	-30 to +5V	-30 to +5V	-146 V DC to +15 V DC	0 to 40V	0 to 40V
● for signal “1”	13 to 30V	13 to 30V	30 V DC to 146 V DC	79 to 264V	79 to 264V
Input current
● for signal “1”, typ.	7 mA	7 mA	3.5 mA	6.5 mA; (120 V); 11 mA (230 V)	7.5 mA; (120 V); 17.3 mA (230 V)
Input delay (for rated value of input voltage)
for standard inputs
— parameterizable	No	No	No	No	No
— at “0” to “1”, min.	1.2 ms	1.2 ms	0.1 ms
— at “0” to “1”, max.	4.8 ms	4.8 ms	3.5 ms	25 ms	25 ms
— at “1” to “0”, min.	1.2 ms	1.2 ms	0.7 ms
— at “1” to “0”, max.	4.8 ms	4.8 ms	3 ms	25 ms	25 ms
Cable length
● shielded, max.	1 000 m	1 000 m	1 000 m	1 000 m	1 000 m
● unshielded, max.	600 m	600 m	600 m	600 m	600 m
Encoder
Connectable encoders
● 2-wire sensor	Yes	Yes	Yes	Yes	Yes
— permissible quiescent current (2-wire sensor), max.	1.5 mA	1.5 mA	1 mA	2 mA	2 mA
Isochronous mode
Isochronous operation (application synchronized up to terminal)	No	No	No	No	No
Interrupts/diagnostics/status information
Diagnostic functions	No	No	No	No	No
Alarms
● Diagnostic alarm	No	No	No	No	No
● Hardware interrupt	No	No	No	No	No
Diagnostics indication LED
● Group error SF (red)			No	No	No
● Status indicator digital input (green)	Yes	Yes	Yes	Yes	Yes
Potential separation
Potential separation digital inputs
● between the channels	No	No	No	No	Yes
● between the channels, in groups of	16	16	8	2	1
● between the channels and backplane bus	Yes; Optocoupler	Yes; Optocoupler	Yes; Optocoupler	Yes; Optocoupler	Yes; Optocoupler

SIPLUS S7-300 SM 321 ordering data

Product No. / Product Description Listprice / Your price

6AG1321-1BH02-2AA0

SIPLUS S7-300 SM321 – 20-POLE -40 … +70 DGR C WITH CONFORMAL COATING CONFORMITY WITH EN50155 T1 KAT 1 KL A/B BASED ON 6ES7321-1BH02-0AA0 . DIGITAL INPUT OPTIC. ISOLATED 16 DI, 24V DC, 1 X 20-POLE

6AG1321-1BL00-2AA0

SIPLUS S7-300 SM321 – 40-POLE -40 … +70 DGR C WITH CONFORMAL COATING CONFORMITY TO EN50155 T1 CAT 1 CL A/B BASED ON 6ES7321-1BL00-0AA0 . DIGITAL INPUT OPTICALLY ISOLATE 32DI, 24 V DC, 1 X 40 PIN

6AG1321-1CH20-2AA0

SIPLUS S7-300 SM 321 -25…+70 °C with conformal coating Conformity with EN 50155 T1 Kat 1 Kl A/B based on 6ES7321-1CH20-0AA0 . Digital input Isolated 16 DI, 48-125 V DC, 1x 20-pole

6AG1321-1FF01-2AA0

SIPLUS S7-300 SM 321-20-pole -40…+70 °C with conformal coating Conformity with EN 50155 T1 Kat 1 Kl A/B based on 6ES7321-1FF01-0AA0 . Digital input Isolated 8 DI, 120 V/230 V AC

6AG1321-1FF10-7AA0

SIPLUS S7-300 SM321 8DI/120/230 -25…+70 °C with conformal coating based on 6ES7321-1FF10-0AA0 . Digital input isolated, 8 DI, 120 V/230 V AC, 1x 40-pole, with single rooting/channel

6AG1321-1FH00-7AA0

SIPLUS S7-300 SM321 16DE/120/23 -40…+70 °C with conformal coating based on 6ES7321-1FH00-0AA0 . Digital input isolated 16 DI, 120/230 V AC, 1x 20-pole

6AG1321-7BH01-2AB0

SIPLUS S7-300 SM 321-20-pole -25…+70 °C with conformal coating Conformity with EN 50155 T1 Kat 1 Kl A/B based on 6ES7321-7BH01-0AB0 . Digital input Isolated “16 DI; 24 V DC, 1x 20-pole,” process interrupt, diagnostics, suitable for isochronous mode operation

6AG1321-7TH00-4AB0

SIPLUS PCS 7 SM 321 16DI for medial exposure with conformal coating based on 6ES7321-7TH00-0AB0 . Digital input “16 DI; 24 V DC, 1x 40-pole,” diagnostics-capable, for contacts (wired/ not wired), NAMUR encoder, 3/4-wire BERO, with chatter “monitoring; Pulse” extension, Open-circuit detection Connection IM 153-2 required

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