SIMATIC S7-1200 – CB 1241 – RS485 – Siemens Signal/ Communication Boards

$ 69.52

SKU: 6ES7241-1CH30-1XB0

The CB 1241 communication board RS 485 is used for fast, high-performance serial data exchange via point-to-point connections. The CB 1241 communication board RS 485 can be plugged directly into all SIMATIC S7-1200 CPUs.

Siemens Communication Board S7-1200 Product Specifications:

Article number 6ES7241-1CH30-1XB0
Communication Board CB 1241, RS485
General information
Product type designation CB 1241 RS 485
Input current
from backplane bus 5 V DC, typ. 50 mA
Power loss
Power loss, typ. 1.5 W
Interfaces
Point-to-point connection
● Cable length, max. 1 000 m
Integrated protocol driver
— Freeport Yes
— ASCII Yes; Available as library function
— Modbus RTU master Yes
— MODBUS RTU slave Yes
— USS Yes; Available as library function
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
Degree and class of protection
IP degree of protection IP20
Standards, approvals, certificates
CE mark Yes
CSA approval Yes
UL approval Yes
cULus Yes
FM approval Yes
RCM (formerly C-TICK) Yes
KC approval Yes
Marine 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 %
Mechanics/material
Enclosure material (front)
● Plastic Yes
Dimensions
Width 38 mm
Height 62 mm
Depth 21 mm
Weights
Weight, approx. 40 g
Weight 0.031 kg
Dimensions 5.0 × 8.0 × 2.7 cm

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