==> Subscribing to change events...
====================== ZMQ (3.22) event system is available ============================

push_event() called! - periodic
Attribute: sys/tg_test/1/double_scalar
double_scalar: 1534949151063 - ATTR_VALID - 124.1111670595652

push_event() called! - periodic
Attribute: sys/tg_test/1
exception message is: IDL:Tango/DevFailed:1.0
Error Level 0:
	 - desc: No heartbeat from dserver/tangotest/1
	 - origin: ZmqEventConsumer.checkIfHeartbeatSkipped()
	 - reason: API_NoHeartbeat
	 - severity: ERROR


push_event() called! - periodic
Attribute: sys/tg_test/1/double_scalar
double_scalar: 1534949172062 - ATTR_VALID - 193.20553121478812

push_event() called! - periodic
Attribute: sys/tg_test/1
exception message is: IDL:Tango/DevFailed:1.0
Error Level 0:
	 - desc: No heartbeat from dserver/tangotest/1
	 - origin: ZmqEventConsumer.checkIfHeartbeatSkipped()
	 - reason: API_NoHeartbeat
	 - severity: ERROR


push_event() called! - periodic
Attribute: sys/tg_test/1/double_scalar
double_scalar: 1534949181063 - ATTR_VALID - 219.43471429836075

==> Unsubscribing from change events...

push_event() called! - periodic
Attribute: sys/tg_test/1
exception message is: IDL:Tango/DevFailed:1.0
Error Level 0:
	 - desc: No heartbeat from dserver/tangotest/1
	 - origin: ZmqEventConsumer.checkIfHeartbeatSkipped()
	 - reason: API_NoHeartbeat
	 - severity: ERROR


push_event() called! - periodic
Attribute: sys/tg_test/1/double_scalar
double_scalar: 1534949190063 - ATTR_VALID - 235.64914368436538

push_event() called! - periodic
Attribute: sys/tg_test/1
exception message is: IDL:Tango/DevFailed:1.0
Error Level 0:
	 - desc: No heartbeat from dserver/tangotest/1
	 - origin: ZmqEventConsumer.checkIfHeartbeatSkipped()
	 - reason: API_NoHeartbeat
	 - severity: ERROR


push_event() called! - periodic
Attribute: sys/tg_test/1/double_scalar
double_scalar: 1534949202063 - ATTR_VALID - 251.29650207357764