CONTROLS HARDWARE RELEASE NO. 54.1CONTROLS
CAMAC 185
DIGITAL INPUT
ED-218122
CONTROLS HARDWARE RELEASE NO. 54.1
CAMAC 185 Module
Digital Input - 32 BITS
Robert J. Ducar
April 14, 1986
1 DESCRIPTION
2 CAMAC 185 OP CODES
5 SPARES
7 DOCUMENTATION
8 PALS DOCUMENTATION
1 DESCRIPTION
The one-wide CAMAC 185 module provides basic digital
monitor facilities. The module furnishes 32 bits of monitor
organized as two 16 bits words. The module also provides
two pulsed outputs. The printed circuit board for this
module provides a variety of input and output conventions
that are easily modified by the end user.
The monitor lines are TTL compatible and normally active
high with 1000 ohms to ground terminated inputs. Active low
inputs and pulled-up inputs are available options to the
user.
The pulsed outputs are normally one second in duration.
Electrically separate pulsed outputs are available at the
module front panel in addition to the rear I/O connector.
These lines are are available as either active high or
active low outputs. When configured in the active high
output option, the output drivers are 74F3037 gates. When
configured in the active low output option, the pulsed lines
are sourced from a 75446 peripheral driver. These drivers
are well suited to relay control, each being capable of
sinking up to 400 ma loads. In this configuration, each
output is diode clamped to +24 volts for transient
suppression and is also pulled-up to +24 volts with a 100K
ohm resistor. The diode clamps and pull-up resistors may be
connected to +5 volts rather than to +24 volts by means of a
soldered wire option.
Upon clear command or powering-up, the pulsed outputs are
set to the off state.
2 CAMAC 185 OP CODES
All codes return module Q and X immediately, except
as noted. This module never asserts LAM.
F(0) A(0) Read Monitor Word 0
---------
R16 (MSB) - (LSB) R1
---------------------------------
M0-15 - Monitor Word 0 - M0-0
F(0) A(1) Read Monitor Word 1
---------
R16 (MSB) - (LSB) R1
---------------------------------
M1-15 - Monitor Word 1 - M1-0
F(6) A(0) Read Module Number
---------
R16 - R9 | R8 - R1
-----------------------------
| 0 | B9 Hex, 185 Dec |
F(7) A(0) Dummy Read - No Data are Returned
---------
F(9) A(0) Reset Module
---------
This command is a logical or with
Z*S2 and power-up clear. It sets
the pulse outputs off.
F(29) A(0) Pulse Output P0
----------
Q is conditional for this operation. If
the P0 Output is active, Q will not be
returned.
F(29) A(1) Pulse Output P1
----------
Q is conditional for this operation. If
the P1 Output is active, Q will not be
returned.
3 CAMAC 185 MODULE - I/O ASSIGNMENTS
Rear I/O: 36 Position Edge Connector A = R B = L
POS SIGNAL POS SIGNAL
--- -------------- --- ----------------
1L Common 1R Common
2L M0-15 (MSB) 2R M1-15 (MSB)
3L M0-14 | 3R M1-14 |
4L M0-13 | 4R M1-13 |
5L M0-12 | 5R M1-12 |
6L M0-11 | 6R M1-11 |
7L M0-10 | 7R M1-10 |
8L M0-9 | 8R M1-9 |
9L M0-8 | 9R M1-8 |
10L M0-7 MW0 10R M1-7 MW1
11L M0-6 | 11R M1-6 |
12L M0-5 | 12R M1-5 |
13L M0-4 | 13R M1-4 |
14L M0-3 | 14R M1-3 |
15L M0-2 | 15R M1-2 |
16L M0-1 | 16R M1-1 |
17L M0-0 (LSB) 17R M1-0 (LSB)
18L P0 18R P1
4 CAMAC 185 MODULE - FRONT PANEL
The CAMAC 184 module has the following front
panel features:
N led: Red (stretched)
P1 Output: Green led (not stretched)
Lemo (74F3037 or 75446 driver)
P0 Output: Green led (not stretched)
Lemo (74F3037 or 75446 driver)
5 SPARES
A supply of CAMAC 185 operational spares is maintained on
the second floor of the Linac Annex. Spares are normally
provided with active high pulse outputs and active high
monitor inputs terminated with 1000 ohms to ground. Pulsed
outputs are normally set to one second +/- 10%.
6 INPUT/OUTPUT OPTIONS
For active low inputs - substitute 74LS541 at IC
Locations #5, #6, #11, and #12. Change 1K ohm pull-downs to
4.7K ohm pull-ups.
For active low P0 and P1 front panel outputs - remove
74F3037 at IC Location #20 and install 75446 at #19.
Install pull-up resistors to +5V or to +24V.
For active low P0 and P1 rear I/O outputs - remove
74F3037 at IC Location #13 and install 75446 at #7. Install
pull-up resistors to +5V or to +24V.
7 DOCUMENTATION
0812-ED-218122 Schematic
0812-BD-218123 Artwork (RF-123)
0812-BD-218124 Master Drawing
0812-MD-34863 Outline Drawing
0812-MC-218102 Front Panel Mechanical
0812-MC-218125 Front Panel Silkscreen
8 PALS DOCUMENTATION
Directory: DEVL::USR$DISK3:[DUCAR.PALS]
Filenames: 18502A.DAT 1st Level NAF Decoder 82S153
18508A.DAT 2nd Level NAF Decoder 82S153
rjd: DEVL::USR$DISK3:[DUCAR.DOC]CMC185.RNO
