The history of computing is a rich tapestry of innovations, each building upon the last to create the complex machines we use today. The first commercial computers emerged in the mid-20th century, with the ENIAC (Electronic Numerical Integrator And Computer) being one of the first general-purpose electronic computers. As computing evolved, the need for smaller, faster, and more efficient processors became increasingly evident. This led to the development of the first integrated circuits, which paved the way for the creation of the Jul-720.
| Pin | Function | Typical Wiring | |-----|----------|----------------| | | +24 V DC | Connect to PLC or DIN‑rail PSU | | 2 | GND | Common ground with controller | | 3 | Ethernet TX+ | Straight‑through to switch/router | | 4 | Ethernet TX‑ | Straight‑through to switch/router | | 5 | Ethernet RX+ | Straight‑through to switch/router | | 6 | Ethernet RX‑ | Straight‑through to switch/router | | 7 | RS‑485 A (optional) | Pair with B to PLC (120 Ω termination) | | 8 | RS‑485 B (optional) | Same as above |
The Jul-720's innovative design centered around its use of a 16-bit bus, allowing for faster data transfer between the processor and memory. This, combined with its 16-bit registers, enabled the processor to handle more complex computations with greater efficiency. The Jul-720 also introduced a unique pipelining architecture, which allowed instructions to be processed in a series of stages, reducing the time it took to execute each instruction.
if not rr.isError(): # Combine two 16‑bit registers into a 32‑bit float (big‑endian) raw = rr.registers[0] << 16 | rr.registers[1] distance_mm = struct.unpack('>f', raw.to_bytes(4, 'big'))[0] print(f"Measured distance: distance_mm:.3f mm") else: print("Modbus error:", rr)
The history of computing is a rich tapestry of innovations, each building upon the last to create the complex machines we use today. The first commercial computers emerged in the mid-20th century, with the ENIAC (Electronic Numerical Integrator And Computer) being one of the first general-purpose electronic computers. As computing evolved, the need for smaller, faster, and more efficient processors became increasingly evident. This led to the development of the first integrated circuits, which paved the way for the creation of the Jul-720.
| Pin | Function | Typical Wiring | |-----|----------|----------------| | | +24 V DC | Connect to PLC or DIN‑rail PSU | | 2 | GND | Common ground with controller | | 3 | Ethernet TX+ | Straight‑through to switch/router | | 4 | Ethernet TX‑ | Straight‑through to switch/router | | 5 | Ethernet RX+ | Straight‑through to switch/router | | 6 | Ethernet RX‑ | Straight‑through to switch/router | | 7 | RS‑485 A (optional) | Pair with B to PLC (120 Ω termination) | | 8 | RS‑485 B (optional) | Same as above | jul-720
The Jul-720's innovative design centered around its use of a 16-bit bus, allowing for faster data transfer between the processor and memory. This, combined with its 16-bit registers, enabled the processor to handle more complex computations with greater efficiency. The Jul-720 also introduced a unique pipelining architecture, which allowed instructions to be processed in a series of stages, reducing the time it took to execute each instruction. The history of computing is a rich tapestry
if not rr.isError(): # Combine two 16‑bit registers into a 32‑bit float (big‑endian) raw = rr.registers[0] << 16 | rr.registers[1] distance_mm = struct.unpack('>f', raw.to_bytes(4, 'big'))[0] print(f"Measured distance: distance_mm:.3f mm") else: print("Modbus error:", rr) This led to the development of the first