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Simatic S7-1200, Communication Module CM 1241, RS232, 9pole D-sub (pin), supports Freeport, Siemens

SIMATIC S7-1200, Communication module CM 1241, RS232, 9-pole D-sub (pin), supports Freeport

General information
Product type designation		CM 1241 RS 232
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
Current consumption, max.		200 mA; From backplane bus 5 V DC
Power loss
Power loss, typ.		1.1 W
Interfaces
Number of interfaces		1
Interface physics, RS 232C (V.24)		Yes
Point-to-point connection
● Cable length, max.		10 m
Integrated protocol driver
— Freeport		Yes
— ASCII		Yes; Available as library function
— Modbus		Yes
— Modbus RTU master		Yes
— MODBUS RTU slave		Yes
Protocols
Integrated protocols
Freeport
— Telegram length, max.		1 kbyte
— Bits per character		7 or 8
— Number of stop bits		1 (Standard), 2
— Parity		No parity (standard); even, uneven, mark (parity bit always 1); space (parity bit always 0)
3964 (R)
— Telegram length, max.		1 kbyte
— Bits per character		7 or 8
— Number of stop bits		1 (Standard), 2
— Parity		No parity (standard); even, uneven, mark (parity bit always 1); space (parity bit always 0)
Modbus RTU master
— Address area		1 through 49 999 (Standard Modbus addressing)
— Number of slaves, max.		247; slave numbers 1 through 247, per MODBUS network segment maximum 32 devices, additional repeaters needed to expand the network to maximum configuration
MODBUS RTU slave
— Address area		1 through 49 999 (Standard Modbus addressing)
Interrupts/diagnostics/status information
Diagnostics function		Yes
Diagnostics indication LED
● for status of the outputs		Yes
Degree and class of protection
Degree of protection acc. to EN 60529
● IP20		Yes
Standards, approvals, certificates
CE mark		Yes
cULus		Yes
FM approval		Yes
RCM (formerly C-TICK)		Yes
KC approval		Yes
Ambient conditions
Free fall
● Fall height, max.		0.3 m; five times, in product package
Ambient temperature during operation
● min.		-20 °C
● max.		60 °C
● horizontal installation, min.		-20 °C
● horizontal installation, max.		60 °C
● vertical installation, min.		-20 °C
● vertical installation, max.		50 °C
● permissible temperature change		5°C to 55°C, 3°C / minute
Ambient temperature during storage/transportation
● min.		-40 °C
● max.		70 °C
Air pressure acc. to IEC 60068-2-13
● Operation, min.		795 hPa
● Operation, max.		1 080 hPa
● Storage/transport, min.		660 hPa
● Storage/transport, max.		1 080 hPa
Relative humidity
● Operation at 25 ℃ without condensation, max.		95 %
Dimensions
Width		30 mm
Height		100 mm
Depth		75 mm
Weights
Weight, approx.		150 g
last modified:		11/10/2018