GMBHR168 Datasheet, PDF (38/70 Pages) List of Unclassifed Manufacturers – Mini BLOCK Housing 16 opto inputs, 8 Relay outputs

grifo^®
ITALIAN TECHNOLOGY
INTERRUPTS
Interrupts management depends completely on hardware installed in ZC1, in fact it's this latter to
determine which signals are interrupts.
If a grifo^® Mini Module is installed, several interrupt sources are available, depending on which
model is used. Please refer to specific manual for further information.
I/O CONNECTION
To prevent possible connecting problems between GMB HR168 and the external systems, the user
has to read carefully the previous paragraph information and he must follow these instrunctions:
- For RS 232, RS 422, RS 485, Current Loop and I²C BUSsignals the user must follow the standard
rules of each one of these protocols, I²C BUS signals are also provided with 4.7 kΩ pull up.
- For all TTL signals the user must follow the rules of this electric standard. The connected digital
signal must be always referred to card digital ground and if an electric insulation is necessary,
then an opto coupled interface must be connected. For TTL signals, the 0V level corresponds
to logic state 0, while 5V level corrisponds to logic state 1.
- The analog inputs (A/D Converter section) on CN7 is provided with filtering capacitors that
warrant more stability on the signal to acquire and lower the cut-off frequency. It is also
possible to connect a voltage divider that divides by 4 the signal amplitude.
- Optocoupled input signals can be configured as NPN or PNP through jumpers J1 and J2, these
jumpers must be moved together. In detail, if inputs are configured as NPN, positive voltage
is present on input pins (INx-1, INy-2) and ground is present on the common pins (COM1 and
COM2), while if the inputs are configured as PNP the situation is reversed, this means ground
on input pins and positive signal on common pins.
- Relays outputs must be connected directly to the load to drive (remote control switches, power
relays, etc.). Board contact is normally open and can bear 5 A up to 30 Vdc. To drive load with
different supplies, different COMMONS for the groups of relays are available.
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GMB HR168 Rel. 5.00