Specifications

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C. Bloodhound Data Sent Out to Electronic Drilling Recorder (EDR) via WITS

The Bloodhound is set up to send a packet out to the EDR via WITS every 6 seconds. This is done through

either the 9 pin male serial connector at 9600 baud (8N1) or through the Pason 10 pin military style connector.

If Register 67 is zero, a Pason Handshake is sent. If Register 12 is not zero then the Bloodhound will attempt

to send total gas to the WITS interface after a good connection is made to the WITS interface using the null

packet. If Register 12 is is zero the Bloodhound will not send the gas readings out the WITS interface - all it

will do is send the null packet to keep the connection going.

The packets the Bloodhound sends out to WITS, in order, are:

0140 –Total Gas (if Register 12 is not zero). The Total Gas value sent is divided by the number in Register 26.

1212 – C1 if Register 68 is 0, sent as Gas Units. If Register 68 is 1, sent as parts per million (PPM).

1213 – C2 if Register 68 is 0, sent as Gas Units. If Register 68 is 1, sent as parts per million (PPM).

1214 – C3 if Register 68 is 0, sent as Gas Units. If Register 68 is 1, sent as parts per million (PPM).

1215 – iC4 if Register 68 is 0, sent as Gas Units. If Register 68 is 1, sent as parts per million (PPM).

1216 – nC4 if Register 68 is 0, sent as Gas Units. If Register 68 is 1, sent as parts per million (PPM).

1217 – IC5 if Register 68 is 0, sent as Gas Units. If Register 68 is 1, sent as parts per million (PPM).

1218 – NC5 if Register 68 is 0, sent as Gas Units. If Register 68 is 1, sent as parts per million (PPM).

1222 – CO

1225 – O

1826 – H

0138 – Lag Strokes (if PC connected)

0139 – Lag Depth (If PC connected)

Following is a sample transmission from the Bloodhound out to WITS:

01400.0000

12120.00

12130.00

12140.00

12150.00

12160.00

12170.00

12180.00

12220.00

122520.92

18260.00

0138280

013914832

The Bloodhound rs422 Pason interface specifications overview

In order to communicate to the Pason Electronic Drilling Recorder (EDR) system without the hassle of any

external hardware, iBall has incorporated a Pason RS422 connection interface into the Bloodhound. This

allows for direct connection to the Pason EDR system to obtain duplex WITS communication.

Generally, no user intervention is necessary on the Bloodhound to access the Pason WITS information when

using this connection. After connecting the 10 pin round military type cabling to the Bloodhound from the

Pason EDR system, the Bloodhound automatically establishes communicates to the Pason system and starts

acquiring and sending WITS data.