Omega Engineering RD8900 user manual Digital Input Card DI181, Comm Module CM181

N	-250 ~ 1300 ˚C		±1 ˚C	2.2MΩ
	(-418 ~ 2372耟˚F)
L	-200 ~ 900 ˚C		±1 ˚C	2.2MΩ
	(-328 ~ 1652 ˚F)
PT100	-210 ~ 700 ˚C		±0.4 ˚C	1.3KΩ
(DIN)	(-346 ~ 1292 ˚F)
PT100	-200 ~ 600 ˚C		±0.4 ˚C	1.3KΩ
(JIS)	(-328 ~ 1112 ˚F)
mV	-8 ~ 70mV		±0.05%	2.2MΩ
mA	-3	~ 27mA	±0.05%	70.5Ω
0~1V	-0.12 ~ 1.15V		±0.05%	332KΩ
0~5V	-1.3	~ 11.5V	±0.05%	332KΩ
1~5V	-1.3	~ 11.5V	±0.05%	332KΩ
0~10V	-1.3	~ 11.5V	±0.05%	332KΩ

Digital Input Card (DI181)

Channels: 6 per card

Logic Low: -30V minimum, 0.8V maximum

Logic High: 2V minimum, 30V maximum

External pull-down Resistance: 1KΩ maximum

External pull-up Resistance: 1.5MΩ minimum

Digital Output Card (DO181) Channels: 6 per card Contact Form: N.O. (form A)

Relay Rating: 5A/240 VAC, life cycles 200,000 for resistive load

24VDC Auxiliary Power Supply Card ( AP181) Channels: to be used for 6 transmitters

Output Rating: 24 ± 1 VDC, 180mA in maximum, 30mA / each channel

COMM Module (CM181)

Interface: RS-232 (1 unit), RS-485 or RS-422 (up to 247 units)

Protocol: Modbus Protocol RTU mode

Address: 1-247

Baud Rate: 0.3~38.4 Kbits/sec.

Measured data Bits: 7 or 8 bits

Parity Bit: None, Even or Odd

Stop Bit: 1 or 2 bits

Standard Ethernet Communication

Protocol: Modbus TCP/IP, 10 Base T

Ports: AUI (Attachment Unit Interface) and RJ-45, Auto- detect capability

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