Programming Examples, Register Description

RELAY OUTPUT CARD PCI

4.4 Programming Examples

Below are several simple examples using 80x86 assembly code for energizing and checking the state of the reed relays on the Relay Output Card PCI. All examples assume a base address of 300 Hex.

Example #1: Programming example to set Relay #27 on, write a “1” in bit position D2, to port address Base+3, or 303 Hex.

MOV DX, 303H		;Set DX to	Port D
MOV AL,	00001000B	;Set bit 3	to a ‘1’
OUT DX,	AL

Example #2: Another method that takes into account the read-back capability of the output ports.

MOV DX, 303H	;Set DX to Port D
IN AL, DX	;Get old port setting
NOT AL	;Invert bits - see note below
OR AL, 00001000B	;OR in bit 3
OUT DX, AL	;Set Bit 3

NOTE

Reading back the ports results in the binary complement of the output.

4.5 Register Description

Table 4-1. Registers.

Address	Mode	D7	D6	D5	D4	D3	D2	D1	D0

Base+0	R/W	P1D7	P1D6	P1D5	P1D4	P1D3	P1D2	P1D1	P1D0

Base+1	R/W	P2D7	P2D6	P2D5	P2D4	P2D3	P2D2	P2D1	P2D0
Base+2	R/W	P3D7	P3D6	P3D5	P3D4	P3D3	P3D2	P3D1	P3D0
Base+3	R/W	P4D7	P4D6	P4D5	P4D4	P4D3	P4D2	P4D1	P4D0

R/W = Read/Write bits

NOTE

The reed relay ports have a non-destructive readback capability. Reading back the ports results in the binary complement of the output. This is particularly useful when writing software that queries the last value written to prevent inadvertently changing the state of the relays.

IC907C, IC908C specifications

The Black Box IC908C and IC907C are cutting-edge communication devices designed for high-performance networking solutions. These two models have become increasingly popular due to their advanced features and capabilities, making them suitable for a wide array of applications, from small business networks to large enterprise environments.

One prominent feature of both the IC908C and IC907C is their ability to support high-speed data transmission. They utilize Ethernet technology, ensuring seamless connectivity and optimal performance across various devices. This technology enables users to enjoy fast and reliable data transfers, which is crucial for maintaining productivity in today’s fast-paced business environment.

The IC908C model is designed to accommodate a broader range of applications, making it an ideal choice for organizations with diverse networking needs. It supports IEEE 802.3 standards, enabling compatibility with a wide array of networking hardware. Additionally, the IC908C supports various cabling standards, including twisted pair and fiber optics, ensuring versatility in installation and configuration.

On the other hand, the IC907C is optimized for higher-density applications, making it perfect for data centers and large networks. It features advanced load balancing and traffic management capabilities, ensuring efficient data flow and reducing latency issues. This model is engineered with robust security features, including VLAN tagging and port security, to protect sensitive information from potential threats.

Both models are equipped with user-friendly interfaces, making them accessible for IT professionals of all levels. The intuitive management applications allow for straightforward configuration and monitoring, enabling administrators to easily manage network settings and performance metrics.

The energy-efficient design of the IC908C and IC907C is another noteworthy characteristic. Incorporating innovative power-saving technologies, these devices minimize energy consumption without sacrificing performance. This feature is particularly beneficial for organizations seeking to reduce their environmental impact and lower operating costs.

In conclusion, the Black Box IC908C and IC907C represent significant advancements in networking technology. With their high-speed capabilities, robust security features, and energy-efficient designs, these devices cater to a variety of networking requirements. Whether it's supporting small teams or managing large enterprise networks, these models offer flexibility and reliability, ensuring seamless connectivity and communication for all users.