CONTROLS
CAMAC 153
ED-
DAC
CONTROLS HARDWARE RELEASE NO. xx.0
CAMAC 153 Module
Quad, Two-State, Bipolar DAC & PS Controller
Robert J. Ducar
February 3, 1992 DRAFT
1 DESCRIPTION
2 INPUT/OUTPUT SCALING
3 CAMAC 153 OP CODES
6 DOCUMENTATION
7 PAL DOCUMENTATION
1 DESCRIPTION
The CAMAC 153 module is a four channel DAC - power supply
controller. The module has the unique capability of switching
between two groups of DAC settings. The times of switching
are determined by either an internally developed level
generated from the detection of certain TCLK events or by an
externally applied level. When this level is off - the
"Normal" condition, the DAC outputs reflect those settings
loaded by the CAMAC F(16) operations. When the level is on -
the "Switched" condition, the DAC outputs reflect those
settings loaded by the CAMAC F(18) operations. The PS ON/OFF
states are not affected by changes of the switching level.
The on-board AD565 DACs have 12 bits of resolution and are
wired for bipolar operation. The analog output ranges from
-10.240 to +10.235 volts with lsb valued at 5 mv. Each
channel is programmed in 2's complement code as a left
justified 12 bit word. Each channel has a buffered output
with separate offset and gain adjustments. The output buffer
amplifier is capable of driving 5ma at full scale output.
There is 100 ohms resistance in series with the front panel
and rear I/O analog output to isolate cable capacitance. All
settings are set to zero upon power up or module clear.
The module also provides four lines of ON/OFF control and
twelve bits of status monitor. The static ON/OFF control
lines are sourced by 74F3037 drivers. The status monitor
inputs are opto-coupled (HCPL-2631) with a separate common
cathode return for each group of three monitor inputs. All
digital inputs and outputs are positive logic.
This module, with the exception of two-state capability and
TCLK interface, is compatible with the CAMAC 053 module.
2 INPUT/OUTPUT SCALING
SELECT INPUT OUTPUT
------ ----- ------
Positive Full Scale 7FF0 +10.235v
Positive Half Full Scale 4000 + 5.120v
Positive LSB 0010 + 0.005v
Zero 0000 0.000v
Minus LSB FFF0 - 0.005v
Minus Full Scale 8000 - 10.240v
3 CAMAC 153 OP CODES
All codes return module Q and X immediately.
This module never asserts LAM.
F(0) A(n) Read Normal D/A Value of DACn n = 0 -> 3
---------
R16 - R5 | R4 - R1
--------------------------------------
Sign <- D/A Value -> LSB 0
F(1) A(0) Read Control and Monitor Status
---------
R17 R16 R15 R14 R13 | R12 - R1
------------------------------------------
SW PS3 PS2 PS1 PS0 SB12 - SB1
ON ON ON ON ON MONITOR LINES
F(2) A(n) Read Switched D/A Value of DACn n = 0 -> 3
---------
R16 - R5 | R4 - R1
--------------------------------------
Sign <- D/A Value -> LSB 0
F(6) A(0) Read Module Number
---------
R16 - R9 | R8 - R1
-----------------------------
0 99 Hex, 153 Dec
F(9) A(0) Reset Module
---------
This command is a logical or with Z*S2 and
power up clear. A reset clears both Normal
and Switched settings for each DAC channel
to zero output, sets the internally derived
controlling level to Normal, and sets each
PS control line OFF.
F(16) A(n) Set Normal D/A Value of DACn n = 0 -> 3
----------
R16 - R5 | R4 - R1
--------------------------------------
Sign <- D/A Value -> LSB X
The D/A value is in 2's complement format.
F(18) A(n) Set Switched D/A Value of DACn n = 0 -> 3
----------
R16 - R5 | R4 - R1
--------------------------------------
Sign <- D/A Value -> LSB X
The D/A value is in 2's complement format.
F(28) A(n) Set PSn Control Line OFF n = 0 -> 3
----------
F(30) A(n) Set PSn Control Line ON n = 0 -> 3
----------
4 CAMAC 153 MODULE - I/O ASSIGNMENTS
A = R B = L
POS SIGNAL POS SIGNAL
--- --------------------- --- ---------------
1L Common 1R DAC3 Output
2L Common 2R DAC2 Output
3L Common 3R DAC1 Output
4L Common 4R DAC0 Output
5L SB11 5R SB12
6L Common SB10 SB11 SB12 6R SB10
7L SB8 7R SB9
8L Common SB7 SB8 SB9 8R SB7
9L SB5 9R SB6
10L Common SB4 SB5 SB6 10R SB4
11L SB2 11R SB3
12L Common SB1 SB2 SB3 12R SB1
13L Common 13R Common
14L Common 14R PS3 ON = 1
15L TCLK Input 15R PS2 ON = 1
16L Common 16R PS1 ON = 1
17L TCLK Output 17R PS0 ON = 1
18L Common 18R Common
5 CAMAC 153 MODULE - FRONT PANEL
The CAMAC 153 module has the following front panel features:
N led: Red, stretched
PSn ON leds: Green
DACn Analog Views: Lemo, 100 ohm series resistance
TCLK led: Green, stretched
TCLK Input & Output: Lemos
Normal led: Green
Switched led: Yellow
Switch Level Input & Output: Lemos
Voltage Test Points: -15v, +15v, +5v, COM
6 DOCUMENTATION
0812-ED- Schematic
0812-BD- Artwork (RF- )
0812-BD- Master Drawing
0812-BD-34863 Outline Drawing
0812-MC- Front Panel Mechanical
0812-MC- Front Panel Silkscreen
7 PAL DOCUMENTATION
Directory: DEVL::USR$DISK3:[DUCAR.PALS]
Filenames: 153xxA.DAT 1st Level NAF Decoder PLS173
153xxA.DAT 2nd Level NAF Decoder PLS173
153xxA.DAT TCLK Decoder PLS153
rjd: DEVL::USR$DISK3:[DUCAR]CMC153.RNO