268XA
Service Manual
4-20
Resistance Range
5700A
Minimum Reading
Maximum Reading
300
Ω
Short Circuit (Zero)
0
Ω
0.1
Ω
300
Ω
190
Ω
189.86
Ω
190.14
Ω
3 k
Ω
Short Circuit (Zero)
0
Ω
1.0
Ω
3 k
Ω
1.9 k
Ω
1.8986 k
Ω
1.9014 k
Ω
30 k
Ω
19 k
Ω
18.986 k
Ω
19.014 k
Ω
300 k
Ω
190 k
Ω
188.90 k
Ω
191.10 k
Ω
3 M
Ω
1.9 M
Ω
1.8733 M
Ω
1.9267 M
Ω
Digital Input/Output Tests
All configuration for the Digital Input/Output Tests is done using the Communications
dialog. To change DIO settings, click the DIO module icon in the TreeView display. Use
the Spy function to monitor DIO settings.
The Digital Input/Output Tests check the 20 Digital I/O lines on the Digital I/O connector
for output and input functions. See Figure 4-5 for the layout of the DIO connector
module.
K2A K2B K1A K1B
DIO 0-7
0
7
8
15
16
19
DIO 8-15
DIO 16-19
K5A K5B K4A K4B
K3A K3B
K8A
Kn
A
RELAY
DIAGRAM
K8B
B
K7A K7B
K6A K6B
RELAYS
DIGITAL I/O
-4V +30V
MAX
en
alg57f.eps
Figure 4-5. DIO Connector Module
RS-232 Digital Input/Output Test
To output bits use the DIO <mask>,<value> command. Set the mask to 1048575. Use the
command "DIO?" for input. The value can range from 1 to 1048575 (2^20 - 1).
1.
Set Signal Lines High Set all of the signal lines high using the DIO
1048575,1048575 command.
2.
Verify Signal Verify that all of the signal lines are equal to or greater than
+3.5 V dc.
3.
Set Signal Line Low Set all of the signal lines low using the DIO 1048575,0
command.
4.
Verify Signal Verify that all of the signal lines are less than or equal to 1 V dc.
Leave them all low.
Summary of Contents for 2680A
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Page 18: ...268XA Service Manual 1 2 ...
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Page 96: ...268XA Service Manual 2 48 ...
Page 98: ...268XA Service Manual 3 2 ...
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Page 132: ...268XA Service Manual 5 2 ...
Page 194: ...268XA Service Manual 6 48 ...
Page 196: ...268XA Service Manual 7 2 ...
Page 204: ...268XA Service Manual 7 10 268X FINAL ASSEMBLY alg105f eps Figure 7 1 268XA Final Assembly ...
Page 207: ...Replaceable Parts Parts Lists 7 7 13 2680A DIO alg100f eps Figure 7 3 DIO Module ...
Page 209: ...Replaceable Parts Parts Lists 7 7 15 2680A FAI alg102f eps Figure 7 4 FAI Module ...
Page 211: ...Replaceable Parts Parts Lists 7 7 17 2680A PAI alg103f eps Figure 7 5 PAI Module ...
Page 214: ...268XA Service Manual 8 2 ...
Page 215: ...8 3 8 Schematic Diagrams Figure 8 1 Backplane PCA 2680A 4001 ...
Page 216: ...268XA Service Manual 8 4 Figure 8 1 Backplane PCA cont 2680A 1001 ...
Page 217: ...8 5 8 Schematic Diagrams Figure 8 2 Controller System Power PCA 2680A 4004 ...
Page 223: ...8 11 8 Schematic Diagrams Figure 8 3 Digital I O PCA 2680A 4006 ...
Page 224: ...268XA Service Manual 8 12 Figure 8 3 Digital I O PCA cont 2680A 1006 1 of 3 ...
Page 225: ...8 13 8 Schematic Diagrams Figure 8 3 Digital I O PCA cont 2680A 1006 2 of 3 ...
Page 226: ...268XA Service Manual 8 14 Figure 8 3 Digital I O PCA cont 2680A 1006 3 of 3 ...
Page 227: ...8 15 8 Schematic Diagrams Figure 8 4 Backplane Extender PCA 2680A 4009 ...
Page 228: ...268XA Service Manual 8 16 Figure 8 4 Backplane Extender PCA cont 2680A 1009 ...
Page 229: ...8 17 8 Schematic Diagrams Figure 8 5 Extender PCA 2680A 4010 ...
Page 230: ...268XA Service Manual 8 18 Figure 8 5 Extender PCA cont 2680A 3010 ...
Page 231: ...8 19 8 Schematic Diagrams Figure 8 6 A D Supply Assembly 2680A 4031 ...
Page 232: ...268XA Service Manual 8 20 Figure 8 6 A D Supply Assembly cont 2680 1031 ...
Page 233: ...8 21 8 Schematic Diagrams Figure 8 7 PCMCIA PCA 2680A 4041 ...
Page 234: ...268XA Service Manual 8 22 Figure 8 7 PCMCIA PCA cont 2686 1041 ...
Page 235: ...8 23 8 Schematic Diagrams Figure 8 8 Output PCA 2680A 4062 ...
Page 236: ...268XA Service Manual 8 24 Figure 8 8 Output PCA cont 2680A 1062 ...
Page 237: ...8 25 8 Schematic Diagrams Figure 8 9 A D PFE PCA 2640A 4003 ...
Page 238: ...268XA Service Manual 8 26 Figure 8 9 A D PFE PCA cont 1 of 6 ...
Page 239: ...8 27 8 Schematic Diagrams Figure 8 9 A D PFE PCA cont 2 of 6 ...
Page 240: ...268XA Service Manual 8 28 Figure 8 9 A D PFE PCA cont 2640A 1003 3 of 6 ...
Page 241: ...8 29 8 Schematic Diagrams Figure 8 9 A D PFE PCA cont 2640A 1003 4 of 6 ...
Page 242: ...268XA Service Manual 8 30 Figure 8 9 A D PFE PCA cont 2640A 1003 5 of 6 ...
Page 243: ...8 31 8 Schematic Diagrams Figure 8 9 A D PFE PCA cont 2640A 1003 6 of 6 ...
Page 244: ...268XA Service Manual 8 32 Figure 8 10 A D FFE PCA 2645A 4003 ...
Page 245: ...8 33 8 Schematic Diagrams Figure 8 10 A D FFE PCA cont 2645A 1003 1 of 6 ...
Page 246: ...268XA Service Manual 8 34 Figure 8 10 A D FFE PCA cont 2645A 1003 2 of 6 ...
Page 247: ...8 35 8 Schematic Diagrams Figure 8 10 A D FFE PCA cont 2645A 1003 3 of 6 ...
Page 248: ...268XA Service Manual 8 36 Figure 8 10 A D FFE PCA cont 2645A 1003 4 of 6 ...
Page 249: ...8 37 8 Schematic Diagrams Figure 8 10 A D FFE PCA cont 2645A 1003 5 of 6 ...
Page 250: ...268XA Service Manual 8 38 Figure 8 10 A D FFE PCA cont 700p29_topress zip 2645A 1003 6 of 6 ...
Page 251: ...8 39 8 Schematic Diagrams Figure 8 11 Analog Input Connector PCA 2620A 4004A ...
Page 252: ...268XA Service Manual 8 40 2620A 1004 Figure 8 11 Analog Input Connector PCA cont ...
Page 253: ...8 41 8 Schematic Diagrams Figure 8 12 Display PCA 1 of 1 ...
Page 254: ...268XA Service Manual 8 42 Figure 8 12 Display PCA cont 1 of 1 ...