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Description
Technical Specifications for 1785-KE
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Relative Humidity: | 5-95% without condensation. |
| Storage temperature: | -40 to 85 Degree Celsius |
| Operating temperature: | 0-60 Deg. Celsius. |
| Backplane current draw | 1.2 A at 5VDC |
| DH+ cable | 1770-CD |
| RS232-C transmission speed | 110 to 19200 bps |
| DH+ transmission speed | up to 57600 bps |
| Module Width | Single Slot |
| Built-in ports | One (1) Data Highway Plus; One (1) RS232-C |
| Compatible controllers | PLC2, PLC3, PLC4, PLC5 controllers |
| Mounting | 1771 Chassis |
| Product Description: | Data Highway Plus Communication controller module |
| Part Number/Catalog No. | 1785-KE |
| Module Type | Communication Interface Module |
| Communication Ports | DH+, DH+(1784-T50), and RS-232-C |
| Rate of Communication | DH+ 57,600 bps, Switch-Selectable RS-232-C 110-1920 |
| Power Requirement | 1.2 Amperes at 5 Volts DC |
| Location | 1771-I/O Rack |
| LEDs | 1 Diagnosis/Status Per Channel |
| Max Modules Per System | 4 |
| Weight | 0.3 lbs (0.1 kg) |
| Coating | Conformal Coat |
| Required External Power | None |
| Typical AC Signal Delay (Off) | 29 (+/- 8) ms |
| Typical DC Signal Delay (Off) | 30 (+/- 7) ms |
| Wiring Arm | 1771-WN |
| Dimensions | 4.5 x 12.4 x 6.3 in (115 x 317 x 160 mm) |
| UPC | 10662468206645 |
About 1785-KE
The 1785-KE is capable of operating and changing data in half-duplex and full-duplex configuration. This module supports communication rates of 57600 bits per second for Data Highway Plus (DH+) and switch selectable speed for RS232 such as 110 to 19200 bits per second. Aside from linking intelligent RS232 devices to DH+ plus network, the 1785-KE is intended to replace the 1785-KD and 1785-KC communication controller modules.
The 1785-KE supports mounting to a slot of a 1785 chassis. Appropriate cable for connecting the module to the DH+ network is Allen-Bradley 1770-CD while compatible data terminal interface cable for the RS232-C port is the 1770-CG of modem interface module with catalog no. 1770-CP.
Since the 1785-KE is inserted into the backplane of a 1785 chassis, it draws current from the backplane. The module’s current draw is 1.2 Amperes at 5VDC. This module is required to be operated in an environment with temperature range of 0-60 Deg. Celsius. For storage, the storage area shall maintain a temperature range of -40 to 85 Degree Celsius while the ambient humidity rating must be kept at 5-95% without condensation.
