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SCM7BP

Backpanels for SCM7B-Modules

SCM7BP image

SCM7BP01 / SCM7BP02 Backpanel


The SCM7BP01 and SCM7BP02 are 1 and 2 channel backpanels. Unlike other backpanels available, both the system and field side sides have screw terminal connectors able to accept discrete wire (10-24 AWG). The backpanels can be ordered with standoffs to allow mounting, using a #6 or smaller screw, or with DIN rail mounting hardware.

System Side - Power

Both backpanels accept 14-35 VDC between “V+” and “COM” using a screw terminal (10-24 AWG) block. No reverse supply diodes are provided with this model, but both are fused at 1/4 Amp (01) or 1/2 Amp (02) for module protection.

Field Side - Signal

On the field side, a temperature sensor is mounted underneath the field side terminal block to provide cold junction compensation for thermocouple modules, and a current-to-voltage conversion resistor (P/N SCM7BXR1) socket location is provided (supplied with SCM7B33 modules).

SCM7BP01-DIN / SCM7BP02-DIN Backpanel


The SCM7BP01 and SCM7BP02 are single and dual channel mounting panels for the SCM7B modules. Both have options for standoffs or DIN rail mounting.

The following accessories are required for DIN rail mounting one SCM7BP01 or SCM7BP02 panel: 1x SCMXBEFE - Base element with snap foot 2x SCMXSE - Side element

SCM7BP04(-DIN) / SCM7BP08(-DIN) / SCM7BP16(-DIN) Backpanel


The SCM7BP04, SCM7BP08, and SCM7BP16 are 4, 8, & 16 channel backpanels that can accept any of the SCM7B analog modules. All three of these backpanels can either be rack mounted using Dataforth’s 19-inch rack P/N SCMXRK-002 (using the provided 3mm screws), or directly mounted to a surface using #6 or smaller screws. The SCM7BP04-DIN, SCM7BP08-DIN, and SCM7BP16-DIN are identical to the SCM7BP04, SCM7BP08, and SCM7BP16, but with DIN rail mounting clips attached instead of standoffs. These brackets allow the backpanels to be mounted on either EN 50022-35 x 7.5 (35 x 15) or EN 50035-G32 type DIN rails.

System Side - Power

Using the “V+” power supply input, the power supply voltage can be as little as +14 VDC. If +15 VDC is available, it is recommended that the supply be connected between the “V+A” or “V+B” connections and “COM”; this will protect the modules against accidental supply reversal. Using both these connections with two power supplies enables redundant power supply operation. It is also recommended that a diode transient absorber be installed to reduce power supply transient events from degrading system performance. An “accessory” location, between the supply and common lines, is provided for this purpose. A system side grounding #10-32 stud is also provided for use if desired. All backpanels are fused according to channel count, allowing 1/4 Amp per channel.

System Side - Signal

Two system interface DB25 connectors are used, to enable using both input and output modules simultaneously, or to route the signal from an input module backplane to an output module backplane. These backpanels use either the SCM7BXCA01 (DB25 to 26-pin adapter cable) and SCMXCA004-XX (26-pin to 26-pin interface cable), or the SCM7BXCA02 (DB25 to DB25 interface cable), depending on system requirements.

Field Side - Signal

On the field side a temperature sensor is mounted underneath the field side terminal block to provide cold junction compensation for thermocouple input modules. A current-to-voltage conversion resistor (P/N SCM7BXR1, supplied with SCM7B33 modules) socket is provided for each channel. Field connections are terminated with three screw terminals at each module site.



PDF Downloads:


10 Modules for Type SCM7BP:

ModuleInputDescription
SCM7BP16-DIN 16-Channel Backplane, DIN Rail SCM7BP Backpanels for SCM7B-Modules
SCM7BP4-DIN 4-Channel Backplane, DIN Rail SCM7BP Backpanels for SCM7B-Modules
SCM7BP04 4-Channel Backpanel SCM7BP Backpanels for SCM7B-Modules
SCM7BP08 8-Channel Backpanel SCM7BP Backpanels for SCM7B-Modules
SCM7BP16 16-Channel Backpanel SCM7BP Backpanels for SCM7B-Modules
SCM7BP08-DIN 8-Channel Backpanel, DIN Rail Mount SCM7BP Backpanels for SCM7B-Modules
SCM7BP02-DIN 2-Channel Backpanel, DIN Rail SCM7BP Backpanels for SCM7B-Modules
SCM7BP02 2-Channel Backpanel SCM7BP Backpanels for SCM7B-Modules
SCM7BP01-DIN 1-Channel Backpanel, DIN Rail SCM7BP Backpanels for SCM7B-Modules
SCM7BP01 1-Channel Backpanel SCM7BP Backpanels for SCM7B-Modules

Specifications

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  • 1-, 2-, 8- and 16-Channel Backplanes with and without standoffs
  • 19" Metal Mounting Rack for Backpanels
  • Non-multiplexed backpanels
  • Input via screw clamps
  • Output via cable
  • Power supply 14 … 35 V
  • Operating temperature range -40°C … +85°C