From p00263@psilink.com Wed Nov 23 06:48:33 PST 1994
Article: 2737 of comp.home.automation
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From: "Derek R. Flickinger" <p00263@psilink.com>
Newsgroups: comp.home.automation
Subject: CCM PL120S
Date: Wed, 16 Nov 94 20:42:02 -0400
Organization: INTERACTIVE HOMES
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Message-ID: <2994122182.2.p00263@psilink.com>
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Some people have request programming information on the RTI/HAL (made 
by Intellon) CCM pl120s CEBus(r) Power Line serial modem.  When you 
purchase them, they include C source for a nice test application, the 
hardware interface reference manual, and a function call programming 
interface manual for their sample DOS TSR utility.  Following is a 
quick summary of the unit's command set for those interested in its 
capabilities (assuming you understand the format of the CEBus protocol 
messages):  

  --  CCM pl120s Communications Protocol  --

Message Format:
(START)(LENGTH)(TYPE)(MESSAGE)(CHECKSUM)

Transmit Packet (Host to CCM 120s, Type=T)
(LPDU)(DA)(DH)(SA)(SH)(NPDU)(APDU)(INFO)

Receive Packet (CCM pl120s to Host[unsolicited], Type=R)
(LPDU)(DA)(DH)(SA)(SH)(NPDU)(APDU)(INFO)

Control Packet (Host to CCM pl120s, Type=C)
Control Character:
 U - Set SA
 H - Set SHC
 G - Set GA
 M - Monitor, 0=Standard; 1=Monitor
 S - Max_Restarts
 T - Max_Retries
 R - Receive_Control, 0=Disable; 1=Enable
 B - Baud Rate, 0=9600; 1=4800; 2=2400
 A - Request Transmit_State
 C - Request device configuration

Status Packet (CCM pl120s to Host [solicited/unsolicited], Type=S)
Status Character:
 U - Current SA
 H - Current SHC
 G - Current GA
 M - Current Monitor Mode, 0=Standard; 1=Monitor
 S - Max_Restarts
 T - Max_Retries
 X - Transmit_Packet_Status
 B - Current Baud Rate, 0=9600; 1=4800; 2=2400
 A - Current Transmit_State


Regards,

  =D-

Derek R. Flickinger
INTERACTIVE HOMES
 


