— USSYes; Available as library function
— ASCIIYes; Available as library function
— ParityNo parity (standard); even, uneven, mark (parity bit always 1); space (parity bit always 0)
— FreeportYes
— Address area1 through 49 999 (Standard Modbus addressing)
Weight, approx.40 g
Power loss, typ.1.5 W
— Modbus RTU deviceYes
— Modbus RTU masterYes
— Bits per character7 or 8
— Number of stop bits1 (Standard), 2
— Telegram length, max.1 kbyte
Diagnostics functionYes
— max. number of devices247; slave numbers 1 through 247, per MODBUS network segment maximum 32 devices, additional repeaters needed to expand the network to maximum configuration
IP degree of protectionIP20
Product type designationCB 1241 RS 485
from backplane bus 5 V DC, typ.50 mA
— Against chemically active substances acc. to EN 60654-4Yes; Class 3 (excluding trichlorethylene)
— to chemically active substances according to EN 60721-3-3Yes; Class 3C4 (RH < 75 %) incl. salt spray acc. to EN 60068-2-52 (severity degree 3); *
— to chemically active substances according to EN 60721-3-6Yes; Class 6C3 (RH < 75 %) incl. salt spray acc. to EN 60068-2-52 (severity degree 3); *
— to biologically active substances according to EN 60721-3-3Yes; Class 3B2 mold, fungus and dry rot spores (with the exception of fauna); Class 3B3 on request
— to biologically active substances according to EN 60721-3-6Yes; Class 6B2 mold and fungal spores (excluding fauna); Class 6B3 on request
— to mechanically active substances according to EN 60721-3-3Yes; Class 3S4 incl. sand, dust, *
— to mechanically active substances according to EN 60721-3-6Yes; Class 6S3 incl. sand, dust; *
— Resistant to commercially available coolants and lubricantsYes; Incl. diesel and oil droplets in the air
— Environmental conditions for process, measuring and control systems acc. to ANSI/ISA-71.04Yes; Level GX group A/B (excluding trichlorethylene; harmful gas concentrations up to the limits of EN 60721-3-3 class 3C4 permissible); level LC3 (salt spray) and level LB3 (oil)
— Note regarding classification of environmental conditions acc. to EN 60721, EN 60654-4 and ANSI/ISA-71.04* The supplied plug covers must remain in place over the unused interfaces during operation!
