Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
200 words
An input-output unit for performing signal receiving and delivery mediation between an industrial control equipment and field devices controlled by it, the input-output unit comprising an input-output nest (70), connected by a bus to the industrial control equipment, an input-output printed circuit board (80), which is accommodated in the input-output nest (70) and performs conversion between the signal forms handled by the industrial control equipment and the signal forms handled by the field devices; a front connector (81) provided at the edge of the input-output printed circuit board(80) so as to be set at the front of the input-output nest (70); a terminal block (60) arranged terminals, which are lined up in a plurality of rows and connected to the field device side signal wires, in cases when the signal wires are separate, individual wires, and connected to the front connector (81); an interface section (90) connected to the field device side signal wires in cases when the signal wires have a connector for use with multiple core cable, and connected to the front connector (81); wherein either the terminal block (60) or the interface section (90) is selectively fitted to the front connector (81) and the input-output nest (70).
Claim 2
Dependent Claim
108 words
An input-output unit according to claim 1, wherein the terminal block (60) has a ready indicator chamber (616) and a circuit board accommodation chamber (618), both chambers being disposed in the row direction in which the terminals are disposed, and has a back board (62) mounted on the bottom surface of the terminal block (60), which has a pattern which is connected to the terminals, and wherein in the ready indicator chamber (616) light emitted by a light emitting device (626), mounted on the back board (62), for indicating the operating state of the terminal block (60), is guided to the upper surface of the terminal block (60).
Claim 3
Dependent Claim
94 words
An input-output unit according to claim 2, wherein an indicator circuit board (64) on which light emitting devices (642), which light up and go out according to the signal states of the terminals, is accommodated in the circuit board accommodation chamber (618), and wherein an partitioned light guide part (644) which is on the upper surface of the terminal block (60) and which in the direction in which the terminals are lined up separately displays the light emitted by each of these light emitting devices, is mounted in the circuit board accommodation chamber (618).
Claim 4
Dependent Claim
42 words
An input-output unit according to claim 2, wherein a temperature compensation unit (66), which makes thermal contact with a terminal to which a thermocouple is connected and measures the temperature of that terminal, is mounted in the circuit board accommodation chamber (618).
Claim 5
Dependent Claim
157 words
An input-output unit according to claim 1, wherein the interface section (90) comprises a printed circuit board (91) and an indicator circuit board (92) which has light emitting devices mounted on it and is connected to this printed circuit board (91) through a cable (922), a case (93) whose side surface is larger than the printed circuit board (91) and which accommodates the indicator circuit board (92) behind an indicator window (931) provided in the front of the case (93), and a cover (94) which is fitted to the back of the case (93), and wherein the indicator circuit board (92)is provided with holding holes (921) and the indicator window (931) is provided with holding projections (937) which project from the back surface of the display window and engage with the holding holes (921) and the indicator circuit board (92) is held by the holding projections (937) and an edge portion of the printed circuit board (91).