Communication module là gì

General information Product type designation CM 1241 RS 422 / 485 Supply voltage Rated value (DC) 24 V DC Yes permissible range, lower limit (DC) 20.4V permissible range, upper limit (DC) 28.8V Input current Current consumption, max. 220mA; From backplane bus 5 V DC Power loss Power loss, typ. 1.1W Interfaces Number of interfaces 1 Interface (physical) RS 422/485 (X.27) Yes Point-to-point connection Cable length, max. 1000m Integrated protocol driver Freeport Yes ASCII Yes; Available as library function Modbus Yes Modbus RTU master Yes MODBUS RTU slave Yes USS Yes; Available as library function Protocols Integrated protocols Freeport Telegram length, max. 1kbyte 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. 1kbyte 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. 0.3m; 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. 795hPa Operation, max. 1080hPa Storage/transport, min. 660hPa Storage/transport, max. 1080hPa Relative humidity Operation at 25 without condensation, max. 95% Dimensions Width 30mm Height 100mm Depth 75mm Weights Weight, approx. 155g last modified: 01/31/2019