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15
PCI Communication
User Manual
Chapter 2
H
ardware
C
onfiguration
Note:
On: 0, Off: 1
2.3.3.3
Tx Enable Mode Selection (SW2)
Tx Enable Mode is set by two, four, or eight position DIP switches (one for each port).
If a switch is set to “On,” the driver of the corresponding port will always be enabled,
and the COM port will change to RS-422 master mode, which means that the Tx out-
put is always enabled. If a switch is set to “OFF,” the driver will be in Auto Direction
Control Mode. You must select a mode before beginning any RS-422 applications.
(PCI-1620A/PCI-1620B/PCI-1622B are SW1)
11
OFF
ON
OFF
OFF
12
OFF
OFF
ON
ON
13
OFF
OFF
ON
OFF
14
OFF
OFF
OFF
ON
15
OFF
OFF
OFF
OFF
Table 2.2: Board ID Setting
Table 2.3: Tx Enable Mode Selection
Mode
Switch Position
Description
RS-422_Master
ON
Tx always enabled
RS-422_Slave/RS-485 OFF
Auto direction control enabled
Note!
Do not set termination resistors in RS232 mode.
Summary of Contents for PCI Series
Page 1: ...User Manual PCI COMM Series User Manual Industrial Serial Communication Cards ...
Page 10: ...PCI Communication User Manual x ...
Page 11: ...Chapter 1 1 Introduction ...
Page 16: ...PCI Communication User Manual 6 ...
Page 17: ...Chapter 2 2 Hardware Configuration ...
Page 22: ...PCI Communication User Manual 12 2 2 7 PCI 1622C Figure 2 7 PCI 1622C Silk Screen ...
Page 28: ...PCI Communication User Manual 18 ...
Page 29: ...Chapter 3 3 Driver Setup and Installation ...
Page 32: ...PCI Communication User Manual 22 ...
Page 34: ...PCI Communication User Manual 24 ...
Page 35: ...Chapter 4 4 ICOM Tools ...
Page 45: ...Chapter 5 5 Pin Assignments and Wiring ...
Page 58: ...PCI Communication User Manual 48 ...