... Peripheral interface characteristics Programmable digital input:6-channel input. Programmable analog input:AL1:0~10V input,AL2:0~10V or 0 ... collector output:2-channel output.Relay output:1-channel output.Analog output:1-channel output,0/4~20ma or 0~ ... 15.0KHZ. 4)Function characteristics Frequency setting way:Digital setting,analog quantity,serial communication setting,multi-speed,PID setting,etc.; PID ...