SIMATIC S7-1200 – CM 1241 Communications Module – Siemens Communication Modules

USD $ 108.36 – USD $ 114.87

SKU: N/A

The CM 1241 communications modules are used for quick, high-performance serial data exchange via point-to-point connection.

Point-to-point connection is possible to, e.g.:

  • SIMATIC S7 automation systems and the systems of many other manufacturers
  • Printers
  • Robot controls
  • Modems
  • Scanners
  • Bar code readers, etc.

Siemens Modules S7-1200 Product Specifications:

Article number 6ES7241-1CH32-0XB0 6ES7241-1AH32-0XB0
Communication Module cm 1241, RS422/485 Communication Module cm 1241, RS232
General information
Product type designation CM 1241 RS 422 / 485 CM 1241 RS 232
Supply voltage
Rated value (DC) 24 V 24 V
permissible range, lower limit (DC) 20.4 V 20.4 V
permissible range, upper limit (DC) 28.8 V 28.8 V
Input current
Current consumption, max. 220 mA; From backplane bus 5 V DC 200 mA; From backplane bus 5 V DC
Power loss
Power loss, typ. 1.1 W 1.1 W
Interfaces
Interfaces/bus type RS 422 / 485 (X.27) RS 232C (V.24)
Number of interfaces 1 1
Point-to-point connection
● Cable length, max. 1 000 m 10 m
Integrated protocol driver
— Freeport Yes Yes
— ASCII Yes; Available as library function Yes; Available as library function
— Modbus RTU master Yes Yes
— MODBUS RTU slave Yes Yes
— USS Yes; Available as library function
Protocols
Integrated protocols
Freeport
— Telegram length, max. 1 kbyte 1 kbyte
— Bits per character 7 or 8 7 or 8
— Number of stop bits 1 (Standard), 2 1 (Standard), 2
— Parity No parity (standard); even, uneven, mark (parity bit always 1); space (parity bit always 0) No parity (standard); even, uneven, mark (parity bit always 1); space (parity bit always 0)
3964 (R)
— Telegram length, max. 1 kbyte 1 kbyte
— Bits per character 7 or 8 7 or 8
— Number of stop bits 1 (Standard), 2 1 (Standard), 2
— Parity No parity (standard); even, uneven, mark (parity bit always 1); space (parity bit always 0) 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) 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 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) 1 through 49 999 (Standard Modbus addressing)
Interrupts/diagnostics/status information
Diagnostics function Yes Yes
Diagnostics indication LED
● for status of the outputs Yes Yes
Degree and class of protection
IP degree of protection IP20 IP20
Standards, approvals, certificates
CE mark Yes Yes
CSA approval Yes Yes
UL approval Yes Yes
cULus Yes Yes
FM approval Yes Yes
RCM (formerly C-TICK) Yes Yes
KC approval Yes Yes
Marine approval Yes Yes
Ambient conditions
Free fall
● Fall height, max. 0.3 m; five times, in product package 0.3 m; five times, in product package
Ambient temperature during operation
● min. -20 °C -20 °C
● max. 60 °C 60 °C
● horizontal installation, min. -20 °C -20 °C
● horizontal installation, max. 60 °C 60 °C
● vertical installation, min. -20 °C -20 °C
● vertical installation, max. 50 °C 50 °C
● permissible temperature change 5°C to 55°C, 3°C / minute 5°C to 55°C, 3°C / minute
Ambient temperature during storage/transportation
● min. -40 °C -40 °C
● max. 70 °C 70 °C
Air pressure acc. to IEC 60068-2-13
● Operation, min. 795 hPa 795 hPa
● Operation, max. 1 080 hPa 1 080 hPa
● Storage/transport, min. 660 hPa 660 hPa
● Storage/transport, max. 1 080 hPa 1 080 hPa
Relative humidity
● Operation at 25 ℃ without condensation, max. 95 % 95 %
Dimensions
Width 30 mm 30 mm
Height 100 mm 100 mm
Depth 75 mm 75 mm
Weights
Weight, approx. 155 g 150 g
Weight N/A
Dimensions N/A

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