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) |
Dimensions | ||
Width | 30 mm | 30 mm |
Height | 100 mm | 100 mm |
Depth | 75 mm | 75 mm |
Weights | ||
Weight, approx. | 155 g | 150 g |