Originally Posted by
angelw
Hi Chris,
Error P/S 86 is usually associated with the pin out of the cable being used. In most instances Software Handshaking (Xon Xoff) is used and when this is the case, a Loopback Null Modem cable, so named because the Handshake Outputs are Loopback to the corresponding Inputs on the same device, is used. The Loopback Handshaking gives the illusion of full Handshaking, when in fact there is no Handshaking at all. Following is the cable configuration for Xon Xoff Handshaking.
If you don't succeed with the following cable pin out and settings and the P/S 86 error persists, check the voltage between pins 20 and 7 at the control; it should be around 12VDC. Pin 6 and 8 are asserted logic 1 by pin 20. If the voltage is less than 3VDC, this will also cause the P/S 86 error.
Regards,
Bill
Loopback Null Modem Pin Out
Machine Side ---------------------------------- PC Side
DB25 Male Connector ---------------- DB9 Female ------ DB25 Female
1 ---- Shield Trace ----------------Not Connected ---- Not Connected
2 --------------------------------------- 2 --------------- 3
3 --------------------------------------- 3 --------------- 2
4
| Bridged
5
6
|
8 All Bridged
|
20
7 --------------------------------------- 5 --------------- 7
Machine Control Parameter Settings
#0020 =0 (I/O Channel =0)
#0100
Bit 1 = 0
#0101
Bit 0 = 1 (2 Stop Bits)
Bit 3 =0 EIA or ISO code (automatically distinguished)
Bit 7 =1 No Feed (Null Characters) before and after the data at data output (
#0102 = 0 (RS-232C using Control Characters DC1 to DC4)
#0103 = 11 (9600)(Baud rate)
PC Software Settings
Handshake Method = Xon Xoff
Data Bits = 7
Stop Bits = 2
Parity Bit = Even
Baud Rate = 9600 (or whatever the control is set to)