PAS 2581

Resistor simulation output board. This is a Precision Analog System’s 2581/RES Industry Pack modules that Concurrent mounts on Acromag APC8620 five slot PCI IP Carrier cards. Each pack has 2 channels for a maximum of 5 packs per carrier card.
iDepending on the ordered option, the board supports various resistor ranges that must be configured outside of SimWB.

Reference Information

I/O Card Model Number

PAS 2581.

I/O Driver Model Number

N/A.

I/O Module License:

ICS-SWB-1232.

External Configuration

The ‘hardware_configuration’ file used by SimWB to map channel numbers to Carrier Card, IP Slot, and pas2581 channel numbers is documented in the included pas2581(7) man page. This file must be created before attempting to use the pas2581 API library. Typically, the file is included on the SOnnnnn.tgz Calibration File tarball included with the pas2581 distribution.

A sample hardware_configuration file is:

#<channel> <address> <burder> <initial> <range> [<calibration filename>]

0 0A1 1.43 OPEN 400 PAS7342_R1

1 0A2 1.43 OPEN 400 PAS7342_R2

2 0B1 2.10 100.0 2000 PAS7337_R1

3 0B2 2.10 100.0 2000 PAS7337_R2

4 0C1 1.43 OPEN 40000

5 0C2 1.43 OPEN 40000

In this example a single APC820A card has three 2581/RES IP modules installed. The first IP module, on Slot A, has external wiring with a 1.43 ohm resistance; the API software will factor out this additional resistance when computing a new resistance setting. The range of this channel has been limited to 0..399.75 ohms nominal – relays on each channel may be enabled to limit a channel’s range to 400 or 2000 ohms. The calibration file for this channel resides in the /usr/lib/config/lib2581 directory and is named PAS7342_R1. If a calibration file is not specified, such as with channels 4 and 5, default values will be used.

See the Release Notes PDF file for more information.

Mapping Table

Channel Column

Channel number.

Mapped Point(s) Column

Output point a channel is mapped to. To map a point to a channel, select a channel on the left side of the I/O Mappings form, then click on a check box for an I/O point on the right side of the form. See I/O Mappings... for details.

Connector

The 25-pin female D-Sub connector has the following pin assignments:

Slot Resistor Pins

Slot A Resistor 1: 2 & 15

Slot A Resistor 2: 3 & 16

Slot B Resistor 1: 4 & 17

Slot B Resistor 2: 5 & 18

Slot C Resistor 1: 6 & 19

Slot C Resistor 2: 7 & 20

Slot D Resistor 1: 8 & 21

Slot D Resistor 2: 9 & 22

Slot E Resistor 1: 10 & 23

Slot E Resistor 2: 11 & 24

Ground Pins: 1, 13, 14, 25

#<channel>	<address>	<burder>	<initial>	<range>	[<calibration filename>]
0	0A1	1.43	OPEN	400	PAS7342_R1
1	0A2	1.43	OPEN	400	PAS7342_R2
2	0B1	2.10	100.0	2000	PAS7337_R1
3	0B2	2.10	100.0	2000	PAS7337_R2
4	0C1	1.43	OPEN	40000
5	0C2	1.43	OPEN	40000

Slot	Resistor	Pins
Slot A	Resistor 1:	2 & 15
Slot A	Resistor 2:	3 & 16
Slot B	Resistor 1:	4 & 17
Slot B	Resistor 2:	5 & 18
Slot C	Resistor 1:	6 & 19
Slot C	Resistor 2:	7 & 20
Slot D	Resistor 1:	8 & 21
Slot D	Resistor 2:	9 & 22
Slot E	Resistor 1:	10 & 23
Slot E	Resistor 2:	11 & 24