... adjustable output: dc current: 0 to 20mA adjustable output; Dc digital voltmeter/ammeter: voltmeter range 0 ~ 200V, input impedance for ... the point start, the lock), logic level instructions, LED digital tube, direction indicator, yet, dc 24V relays, signal a number.4. ... (AC/DC/RELAY) host, integrated digital quantity I / 0 (14 road digital input / 10 road digital output), RS 485 communication mouth, ...