System Command Message (Tran Type 36-15)

When Simplify receives a System Command Request from the POS, it executes the command sent by the POS.The response echoes the request if successful; else it returns an error code. If Simplify is busy when a System Command request is sent, the request will be buffered.

A Command subfield in field 0011 defines the command type. The following commands are currently supported:

Command Requested Action
001 PIN Pad Reboot
005 Graphics Update

Reboot – The only fields are 0001 and 0011 (see Field 11 (User Data)). PIN Pad echoes the request and reboots.

Graphics Update – The POS requests a Graphics Update by sending a series of System Command messages (segments) to Simplify. See under Graphics Update Message (Tran Type 36-15-005) for details.