B&B Electronics 2IQEC4 Input/Output Control Register Write to Control Address, IOR Byte Defined

Page 12

Non-Recycle.In non-recycle count mode, the CNTR is disabled, whenever a count overflow or underflow takes place. The end of cycle is marked by the generation of a Carry (in Up Count) or a Borrow (in Down Count). The CNTR is re-enabled when a reset or load operation is performed on the CNTR.

Modulo-N.In modulo-N count mode, a count boundary is set between 0 and the content of PR. When counting up at CNTR=PR, the CNTR is reset to 0 and the up count is continued from that point. When counting down, at CNTR=0, the CNTR is loaded with the content of PR and down count is continued from that point.

The modulo-N is true bidirectional in that the divide-by-N output frequency is generated in both up and down direction of counting for same N and does not require the complement of N in the UP instance. In frequency divider application, the modulo-N output frequency can be obtained at either the Compare(FLG1) or the Borrow(FLG2) output. Modulo-N output frequency, fN=fI/(N+1) where fI is the input count frequency and N=PR.

Input/Output Control Register (Write to Control Address)

The functional modes of the programmable input and output pins are written into the IORs.

 

 

 

 

 

 

 

IOR Byte Defined

7

6

5

4

3

2

1

0

 

X

1

0

X

X

X

X

0 Disable inputs A and B

X

1

0

X

X

X

X

1 Enable inputs A and B

X

1

0

X

X

X

0

X LCNTR'/LOL' pin is Load CNTR input

X

1

0

X

X

X

1

X LCNTR'/LOL' pin is Load OL input

X

1

0

X

X

1

X

X RCNTR'/ABG pin is Reset CNTR input

X

1

0

X

X

0

X

X RCNTR'/ABG pin is A and B Enable gate

X

1

0

0

0

X

X

X FLG1 pin is Carry' output, FLG2 pin is Borrow' output

X

1

0

0

1

X

X

X FLG1 pin is Compare' output, FLG2 pin is Borrow' output

X

1

0

1

0

X

X

X FLG1 pin is Carry'/Borrow' output, FLG2 pin is U/D'

X

1

0

1

1

X

X

X FLG1 pin is IDX, FLG2 is E

0

1

0

X

X

X

X

X Select the IOR addressed by X'/Y input

1

1

0

X

X

X

X

X Select both XIOR and YIOR or ZIOR and WIOR together

10

2IQEC2/43798 Manual

B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350

PH (815) 433-5100 -- FAX (815) 433-5105

Page 11 Page 13
Image 12
Page 11 Page 13
Contents Models 2IQEC2 2IQEC4 Designed and Manufactured Ottawa, IllinoisInternet Table of Contents Address Switch Setup IntroductionPacking List Specifications Installation Software InstallationInstalling the Card Card SettingsAddress Switches 1st Digit 2nd Digit Position Bus Weight Hex WeightConnection Decimal 3A0 1110100000 0111010 Bisync comHardware Interrupts AT machines XT machinesConfiguring the jumpers Location of Jumpers 2IQEC2/43798 Manual Software Registers Flag Register Read Data AddressFlag Byte Defined RLD Byte DefinedCounter Mode Registers Write to Control Address Filter Clock PrescalersCMR Byte Defined Definitions of count modesInput/Output Control Register Write to Control Address IOR Byte DefinedIndex Control Registers Write to Control Address IDR Byte DefinedTroubleshooting Appendix a Hardware I/O Map Map of XT Class MachinesHardware I/O Map of AT Class Machines Appendix B Specifications/Timing Diagrams Pin DescriptionAddresses Transient Characteristics Quadrature ModeNon-Quadrature Mode Page Page Page Appendix C Typical Set-up Examples

2IQEC2, 2IQEC4 specifications

B&B Electronics has long been a key player in the field of industrial communication and networking solutions, and their 2IQEC4 and 2IQEC2 devices stand as reflective examples of their innovation and dedication to quality. These devices are part of the company's extensive range designed to facilitate communication in diverse industrial settings, ensuring reliability and efficiency.

The 2IQEC4 is a robust 4-port Ethernet switch, while the 2IQEC2 serves as a 2-port variant. Both models are integrated with advanced technologies to deliver seamless connectivity in environments where durability and performance are critical. One of the standout features of these devices is their compatibility with Power over Ethernet (PoE), which allows for simpler installations by eliminating the need for separate power sources for each connected device.

These Ethernet switches are engineered for industrial applications, meaning they can withstand harsh conditions, including extreme temperatures, vibration, and electromagnetic interference. Their rugged design ensures reliable operation in demanding environments, making them ideal for industries such as manufacturing, transportation, and utility management.

Both the 2IQEC4 and 2IQEC2 come equipped with advanced security features including VLAN support and IGMP snooping, which help to optimize traffic performance and enhance overall network security. These functionalities are crucial in preventing unauthorized access, managing bandwidth efficiently, and minimizing potential network congestion.

In terms of installation and management, B&B Electronics has designed these devices for user-friendliness. The web-based management interface allows for straightforward configuration and monitoring, empowering users to manage their networks with ease. Additionally, diagnostic LEDs provide real-time feedback on device status, facilitating quick troubleshooting and maintenance.

The Ethernet switches also support a wide range of networking protocols, which ensures compatibility with various industrial devices and systems. This flexibility makes them suitable for integrating with existing infrastructure while also enabling future scalability as a network grows or evolves.

In summary, B&B Electronics' 2IQEC4 and 2IQEC2 models offer a reliable, efficient, and secure solution for industrial networking. With their robust construction, advanced features, and user-friendly management capabilities, these Ethernet switches are well-equipped to meet the challenges of modern industrial environments, making them invaluable assets in enhancing communication and operational efficiency.
Top Page Image Contents